diff --git a/Gruntfile.js b/Gruntfile.js
index 3738e60b4..6d53e4d29 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -144,6 +144,7 @@ module.exports = function(grunt) {
                     "editor/js/ui/keyboard.js",
                     "editor/js/ui/workspaces.js",
                     "editor/js/ui/view.js",
+                    "editor/js/ui/view-navigator.js",
                     "editor/js/ui/sidebar.js",
                     "editor/js/ui/palette.js",
                     "editor/js/ui/tab-info.js",
diff --git a/editor/icons/file-in.png b/editor/icons/file-in.png
new file mode 100644
index 000000000..d3e5cd7fe
Binary files /dev/null and b/editor/icons/file-in.png differ
diff --git a/editor/icons/file-out.png b/editor/icons/file-out.png
new file mode 100644
index 000000000..051f819c8
Binary files /dev/null and b/editor/icons/file-out.png differ
diff --git a/editor/js/nodes.js b/editor/js/nodes.js
index 433e400a2..12ff3e682 100644
--- a/editor/js/nodes.js
+++ b/editor/js/nodes.js
@@ -133,7 +133,7 @@ RED.nodes = (function() {
             registerNodeType: function(nt,def) {
                 nodeDefinitions[nt] = def;
                 def.type = nt;
-                if (def.category != "subflows") {
+                if (nt.substring(0,8) != "subflow:") {
                     def.set = nodeSets[typeToId[nt]];
                     nodeSets[typeToId[nt]].added = true;
                     nodeSets[typeToId[nt]].enabled = true;
@@ -356,7 +356,7 @@ RED.nodes = (function() {
             defaults:{name:{value:""}},
             info: sf.info,
             icon: function() { return sf.icon||"subflow.png" },
-            category: "subflows",
+            category: sf.category || "subflows",
             inputs: sf.in.length,
             outputs: sf.out.length,
             color: "#da9",
@@ -519,6 +519,7 @@ RED.nodes = (function() {
         node.type = n.type;
         node.name = n.name;
         node.info = n.info;
+        node.category = n.category;
         node.in = [];
         node.out = [];
 
diff --git a/editor/js/ui/common/tabs.js b/editor/js/ui/common/tabs.js
index 23b69f5d1..4ed7ffe53 100644
--- a/editor/js/ui/common/tabs.js
+++ b/editor/js/ui/common/tabs.js
@@ -170,8 +170,8 @@ RED.tabs = (function() {
                 ul.children().css({"transition": "width 100ms"});
                 link.parent().addClass("active");
                 var parentId = link.parent().attr('id');
-                wrapper.find(".red-ui-tab-link-button").removeClass("active");
-                $("#"+parentId+"-link-button").addClass("active");
+                wrapper.find(".red-ui-tab-link-button").removeClass("active selected");
+                $("#"+parentId+"-link-button").addClass("active selected");
                 if (options.scrollable) {
                     var pos = link.parent().position().left;
                     if (pos-21 < 0) {
diff --git a/editor/js/ui/editor.js b/editor/js/ui/editor.js
index df50db725..0f6050b8a 100644
--- a/editor/js/ui/editor.js
+++ b/editor/js/ui/editor.js
@@ -108,17 +108,6 @@ RED.editor = (function() {
                 }
             }
         }
-        if (node.icon) {
-            var iconPath = RED.utils.separateIconPath(node.icon);
-            if (!iconPath.module) {
-                return isValid;
-            }
-            var iconSets = RED.nodes.getIconSets();
-            var iconFileList = iconSets[iconPath.module];
-            if (!iconFileList || iconFileList.indexOf(iconPath.file) === -1) {
-                isValid = false;
-            }
-        }
         return isValid;
     }
 
@@ -170,27 +159,6 @@ RED.editor = (function() {
                 }
             }
         }
-        validateIcon(node);
-    }
-
-    function validateIcon(node) {
-        if (node._def.hasOwnProperty("defaults") && !node._def.defaults.hasOwnProperty("icon") && node.icon) {
-            var iconPath = RED.utils.separateIconPath(node.icon);
-            var iconSets = RED.nodes.getIconSets();
-            var iconFileList = iconSets[iconPath.module];
-            var iconModule = $("#node-settings-icon-module");
-            var iconFile = $("#node-settings-icon-file");
-            if (!iconFileList) {
-                iconModule.addClass("input-error");
-                iconFile.removeClass("input-error");
-            } else if (iconFileList.indexOf(iconPath.file) === -1) {
-                iconModule.removeClass("input-error");
-                iconFile.addClass("input-error");
-            } else {
-                iconModule.removeClass("input-error");
-                iconFile.removeClass("input-error");
-            }
-        }
     }
 
     function validateNodeEditorProperty(node,defaults,property,prefix) {
@@ -711,6 +679,97 @@ RED.editor = (function() {
         }
         return result;
     }
+    function showIconPicker(container, node, iconPath, done) {
+        var containerPos = container.offset();
+        var pickerBackground = $('<div>').css({
+            position: "absolute",top:0,bottom:0,left:0,right:0,zIndex:20
+        }).appendTo("body");
+
+        var top = containerPos.top - 30;
+
+        if (top+280 > $( window ).height()) {
+            top = $( window ).height() - 280;
+        }
+        var picker = $('<div class="red-ui-icon-picker">').css({
+            top: top+"px",
+            left: containerPos.left+"px",
+        }).appendTo("body");
+
+        var hide = function() {
+            pickerBackground.remove();
+            picker.remove();
+            RED.keyboard.remove("escape");
+        }
+        RED.keyboard.add("*","escape",function(){hide()});
+        pickerBackground.on("mousedown", hide);
+
+        var searchDiv = $("<div>",{class:"red-ui-search-container"}).appendTo(picker);
+        searchInput = $('<input type="text">').attr("placeholder","Search icons").appendTo(searchDiv).searchBox({
+            delay: 50,
+            change: function() {
+                var searchTerm = $(this).val().trim();
+                if (searchTerm === "") {
+                    iconList.find(".red-ui-icon-list-module").show();
+                    iconList.find(".red-ui-icon-list-icon").show();
+                } else {
+                    iconList.find(".red-ui-icon-list-module").hide();
+                    iconList.find(".red-ui-icon-list-icon").each(function(i,n) {
+                        if ($(n).data('icon').indexOf(searchTerm) === -1) {
+                            $(n).hide();
+                        } else {
+                            $(n).show();
+                        }
+                    });
+                }
+            }
+        });
+
+        var row = $('<div>').appendTo(picker);
+        var iconList = $('<div class="red-ui-icon-list">').appendTo(picker);
+        var metaRow = $('<div class="red-ui-icon-meta"></div>').appendTo(picker);
+        var summary = $('<span>').appendTo(metaRow);
+        var resetButton = $('<button class="editor-button editor-button-small">use default</button>').appendTo(metaRow).click(function(e) {
+            e.preventDefault();
+            hide();
+            done(null);
+        });
+        var iconSets = RED.nodes.getIconSets();
+        Object.keys(iconSets).forEach(function(moduleName) {
+            var icons = iconSets[moduleName];
+            if (icons.length > 0) {
+                // selectIconModule.append($("<option></option>").val(moduleName).text(moduleName));
+                var header = $('<div class="red-ui-icon-list-module"></div>').text(moduleName).appendTo(iconList);
+                $('<i class="fa fa-cube"></i>').prependTo(header);
+                icons.forEach(function(icon) {
+                    var iconDiv = $('<div>',{class:"red-ui-icon-list-icon"}).appendTo(iconList);
+                    var nodeDiv = $('<div>',{class:"red-ui-search-result-node"}).appendTo(iconDiv);
+                    var colour = node._def.color;
+                    var icon_url = "icons/"+moduleName+"/"+icon;
+                    iconDiv.data('icon',icon_url)
+                    nodeDiv.css('backgroundColor',colour);
+                    var iconContainer = $('<div/>',{class:"palette_icon_container"}).appendTo(nodeDiv);
+                    $('<div/>',{class:"palette_icon",style:"background-image: url("+icon_url+")"}).appendTo(iconContainer);
+
+                    if (iconPath.module === moduleName && iconPath.file === icon) {
+                        iconDiv.addClass("selected");
+                    }
+                    iconDiv.on("mouseover", function() {
+                        summary.text(icon);
+                    })
+                    iconDiv.on("mouseout", function() {
+                        summary.html("&nbsp;");
+                    })
+                    iconDiv.click(function() {
+                        hide();
+                        done(moduleName+"/"+icon);
+                    })
+                })
+            }
+        });
+        picker.slideDown(100);
+        searchInput.focus();
+    }
+
     function buildLabelForm(container,node) {
         var dialogForm = $('<form class="dialog-form form-horizontal" autocomplete="off"></form>').appendTo(container);
 
@@ -748,81 +807,36 @@ RED.editor = (function() {
         }
 
         if ((!node._def.defaults || !node._def.defaults.hasOwnProperty("icon"))) {
-            $('<div class="form-row"><div id="node-settings-icon"></div></div>').appendTo(dialogForm);
-            var iconDiv = $("#node-settings-icon");
-            $('<label data-i18n="editor.settingIcon">').appendTo(iconDiv);
-            var iconForm = $('<div>',{class:"node-label-form-row"});
-            iconForm.appendTo(iconDiv);
-            $('<label>').appendTo(iconForm);
+            $('<hr>').appendTo(dialogForm);
+            var iconRow = $('<div class="form-row"></div>').appendTo(dialogForm);
+            $('<label style="width: 50px" data-i18n="editor.settingIcon">').appendTo(iconRow);
 
-            var selectIconModule = $('<select id="node-settings-icon-module"><option value=""></option></select>').appendTo(iconForm);
-            var iconPath;
-            if (node.icon) {
-                iconPath = RED.utils.separateIconPath(node.icon);
-            } else {
-                iconPath = RED.utils.getDefaultNodeIcon(node._def, node);
-            }
-            var iconSets = RED.nodes.getIconSets();
-            Object.keys(iconSets).forEach(function(moduleName) {
-                selectIconModule.append($("<option></option>").val(moduleName).text(moduleName));
-            });
-            if (iconPath.module && !iconSets[iconPath.module]) {
-                selectIconModule.append($("<option disabled></option>").val(iconPath.module).text(iconPath.module));
-            }
-            selectIconModule.val(iconPath.module);
-            var iconModuleHidden = $('<input type="hidden" id="node-settings-icon-module-hidden"></input>').appendTo(iconForm);
-            iconModuleHidden.val(iconPath.module);
+            var iconButton = $('<button class="editor-button">').appendTo(iconRow);
 
-            var selectIconFile = $('<select id="node-settings-icon-file"><option value=""></option></select>').appendTo(iconForm);
-            selectIconModule.change(function() {
-                moduleChange(selectIconModule, selectIconFile, iconModuleHidden, iconFileHidden, iconSets, true);
-            });
-            var iconFileHidden = $('<input type="hidden" id="node-settings-icon-file-hidden"></input>').appendTo(iconForm);
-            iconFileHidden.val(iconPath.file);
-            selectIconFile.change(function() {
-                selectIconFile.removeClass("input-error");
-                var fileName = selectIconFile.val();
-                iconFileHidden.val(fileName);
-            });
-            var clear = $('<button class="editor-button editor-button-small"><i class="fa fa-times"></i></button>').appendTo(iconForm);
-            clear.click(function(evt) {
-                evt.preventDefault();
-                var iconPath = RED.utils.getDefaultNodeIcon(node._def, node);
-                selectIconModule.val(iconPath.module);
-                moduleChange(selectIconModule, selectIconFile, iconModuleHidden, iconFileHidden, iconSets, true);
-                selectIconFile.removeClass("input-error");
-                selectIconFile.val(iconPath.file);
-                iconFileHidden.val(iconPath.file);
-            });
+            var nodeDiv = $('<div>',{class:"red-ui-search-result-node"}).appendTo(iconButton);
+            var colour = node._def.color;
+            var icon_url = RED.utils.getNodeIcon(node._def,node);
+            nodeDiv.css('backgroundColor',colour);
+            var iconContainer = $('<div/>',{class:"palette_icon_container"}).appendTo(nodeDiv);
+            var iconDiv = $('<div/>',{class:"palette_icon",style:"background-image: url("+icon_url+")"}).appendTo(iconContainer);
 
-            moduleChange(selectIconModule, selectIconFile, iconModuleHidden, iconFileHidden, iconSets, false);
-            var iconFileList = iconSets[selectIconModule.val()];
-            if (!iconFileList || iconFileList.indexOf(iconPath.file) === -1) {
-                selectIconFile.append($("<option disabled></option>").val(iconPath.file).text(iconPath.file));
-            }
-            selectIconFile.val(iconPath.file);
-        }
-    }
-
-    function moduleChange(selectIconModule, selectIconFile, iconModuleHidden, iconFileHidden, iconSets, updateIconFile) {
-        selectIconFile.children().remove();
-        var moduleName = selectIconModule.val();
-        if (moduleName !== null) {
-            iconModuleHidden.val(moduleName);
-        }
-        var iconFileList = iconSets[moduleName];
-        if (iconFileList) {
-            iconFileList.forEach(function(fileName) {
-                if (updateIconFile) {
-                    updateIconFile = false;
-                    iconFileHidden.val(fileName);
+            iconButton.click(function(e) {
+                e.preventDefault();
+                var iconPath;
+                var icon = $("#node-settings-icon").text()||"";
+                if (icon) {
+                    iconPath = RED.utils.separateIconPath(icon);
+                } else {
+                    iconPath = RED.utils.getDefaultNodeIcon(node._def, node);
                 }
-                selectIconFile.append($("<option></option>").val(fileName).text(fileName));
-            });
+                showIconPicker(iconRow,node,iconPath,function(newIcon) {
+                    $("#node-settings-icon").text(newIcon||"");
+                    var icon_url = RED.utils.getNodeIcon(node._def,{type:node.type,icon:newIcon});
+                    iconDiv.css("backgroundImage","url("+icon_url+")");
+                });
+            })
+            $('<div class="uneditable-input" id="node-settings-icon">').text(node.icon).appendTo(iconRow);
         }
-        selectIconFile.prop("disabled", !iconFileList);
-        selectIconFile.removeClass("input-error");
-        selectIconModule.removeClass("input-error");
     }
 
     function updateLabels(editing_node, changes, outputMap) {
@@ -1086,9 +1100,7 @@ RED.editor = (function() {
                         }
 
                         if (!editing_node._def.defaults || !editing_node._def.defaults.hasOwnProperty("icon")) {
-                            var iconModule = $("#node-settings-icon-module-hidden").val();
-                            var iconFile = $("#node-settings-icon-file-hidden").val();
-                            var icon = (iconModule && iconFile) ? iconModule+"/"+iconFile : "";
+                            var icon = $("#node-settings-icon").text()||""
                             if (!isDefaultIcon) {
                                 if (icon !== editing_node.icon) {
                                     changes.icon = editing_node.icon;
@@ -1692,15 +1704,28 @@ RED.editor = (function() {
                         if (updateLabels(editing_node, changes, null)) {
                             changed = true;
                         }
-                        var iconModule = $("#node-settings-icon-module-hidden").val();
-                        var iconFile = $("#node-settings-icon-file-hidden").val();
-                        var icon = (iconModule && iconFile) ? iconModule+"/"+iconFile : "";
+                        var icon = $("#node-settings-icon").text()||"";
                         if ((editing_node.icon === undefined && icon !== "node-red/subflow.png") ||
                             (editing_node.icon !== undefined && editing_node.icon !== icon)) {
                             changes.icon = editing_node.icon;
                             editing_node.icon = icon;
                             changed = true;
                         }
+                        var newCategory = $("#subflow-input-category").val().trim();
+                        if (newCategory === "_custom_") {
+                            newCategory = $("#subflow-input-custom-category").val().trim();
+                            if (newCategory === "") {
+                                newCategory = editing_node.category;
+                            }
+                        }
+                        if (newCategory === 'subflows') {
+                            newCategory = '';
+                        }
+                        if (newCategory != editing_node.category) {
+                            changes['category'] = editing_node.category;
+                            editing_node.category = newCategory;
+                            changed = true;
+                        }
 
                         RED.palette.refresh();
 
@@ -1773,8 +1798,6 @@ RED.editor = (function() {
                 });
                 portLabels.content.addClass("editor-tray-content");
 
-
-
                 if (editing_node) {
                     RED.sidebar.info.refresh(editing_node);
                 }
@@ -1787,6 +1810,33 @@ RED.editor = (function() {
 
                 $("#subflow-input-name").val(subflow.name);
                 RED.text.bidi.prepareInput($("#subflow-input-name"));
+
+                $("#subflow-input-category").empty();
+                var categories = RED.palette.getCategories();
+                categories.sort(function(A,B) {
+                    return A.label.localeCompare(B.label);
+                })
+                categories.forEach(function(cat) {
+                    $("#subflow-input-category").append($("<option></option>").val(cat.id).text(cat.label));
+                })
+                $("#subflow-input-category").append($("<option></option>").attr('disabled',true).text("---"));
+                $("#subflow-input-category").append($("<option></option>").val("_custom_").text(RED._("palette.addCategory")));
+
+
+                $("#subflow-input-category").change(function() {
+                    var val = $(this).val();
+                    if (val === "_custom_") {
+                        $("#subflow-input-category").width(120);
+                        $("#subflow-input-custom-category").show();
+                    } else {
+                        $("#subflow-input-category").width(250);
+                        $("#subflow-input-custom-category").hide();
+                    }
+                })
+
+
+                $("#subflow-input-category").val(subflow.category||"subflows");
+
                 subflowEditor.getSession().setValue(subflow.info||"",-1);
                 var userCount = 0;
                 var subflowType = "subflow:"+editing_node.id;
@@ -1799,7 +1849,6 @@ RED.editor = (function() {
                 $("#subflow-dialog-user-count").text(RED._("subflow.subflowInstances", {count:userCount})).show();
 
                 buildLabelForm(portLabels.content,subflow);
-                validateIcon(subflow);
                 trayBody.i18n();
             },
             close: function() {
diff --git a/editor/js/ui/palette.js b/editor/js/ui/palette.js
index 38ebc1091..c72ed4f7a 100644
--- a/editor/js/ui/palette.js
+++ b/editor/js/ui/palette.js
@@ -21,7 +21,18 @@ RED.palette = (function() {
 
     var categoryContainers = {};
 
-    function createCategoryContainer(category, label) {
+
+    function createCategory(originalCategory,rootCategory,category,ns) {
+        if ($("#palette-base-category-"+rootCategory).length === 0) {
+            createCategoryContainer(originalCategory,rootCategory, ns+":palette.label."+rootCategory);
+        }
+        $("#palette-container-"+rootCategory).show();
+        if ($("#palette-"+category).length === 0) {
+            $("#palette-base-category-"+rootCategory).append('<div id="palette-'+category+'"></div>');
+        }
+    }
+    function createCategoryContainer(originalCategory,category, labelId) {
+        var label = RED._(labelId, {defaultValue:category});
         label = (label || category).replace(/_/g, " ");
         var catDiv = $('<div id="palette-container-'+category+'" class="palette-category palette-close hide">'+
             '<div id="palette-header-'+category+'" class="palette-header"><i class="expanded fa fa-angle-down"></i><span>'+label+'</span></div>'+
@@ -31,7 +42,8 @@ RED.palette = (function() {
             '<div id="palette-'+category+'-function"></div>'+
             '</div>'+
             '</div>').appendTo("#palette-container");
-
+        catDiv.data('category',originalCategory);
+        catDiv.data('label',label);
         categoryContainers[category] = {
             container: catDiv,
             close: function() {
@@ -133,6 +145,7 @@ RED.palette = (function() {
         }
         if (exclusion.indexOf(def.category)===-1) {
 
+            var originalCategory = def.category;
             var category = def.category.replace(/ /g,"_");
             var rootCategory = category.split("-")[0];
 
@@ -153,7 +166,6 @@ RED.palette = (function() {
 
             d.className="palette_node";
 
-
             if (def.icon) {
                 var icon_url = RED.utils.getNodeIcon(def);
                 var iconContainer = $('<div/>',{class:"palette_icon_container"+(def.align=="right"?" palette_icon_container_right":"")}).appendTo(d);
@@ -174,21 +186,12 @@ RED.palette = (function() {
                 d.appendChild(portIn);
             }
 
-            if ($("#palette-base-category-"+rootCategory).length === 0) {
-                if(coreCategories.indexOf(rootCategory) !== -1){
-                    createCategoryContainer(rootCategory, RED._("node-red:palette.label."+rootCategory, {defaultValue:rootCategory}));
-                } else {
-                    var ns = def.set.id;
-                    createCategoryContainer(rootCategory, RED._(ns+":palette.label."+rootCategory, {defaultValue:rootCategory}));
-                }
-            }
-            $("#palette-container-"+rootCategory).show();
-
-            if ($("#palette-"+category).length === 0) {
-                $("#palette-base-category-"+rootCategory).append('<div id="palette-'+category+'"></div>');
-            }
+            createCategory(def.category,rootCategory,category,(coreCategories.indexOf(rootCategory) !== -1)?"node-red":def.set.id);
 
             $("#palette-"+category).append(d);
+
+            $(d).data('category',rootCategory);
+
             d.onmousedown = function(e) { e.preventDefault(); };
 
             var popover = RED.popover.create({
@@ -308,7 +311,7 @@ RED.palette = (function() {
             });
 
             var nodeInfo = null;
-            if (def.category == "subflows") {
+            if (nt.indexOf("subflow:") === 0) {
                 $(d).dblclick(function(e) {
                     RED.workspaces.show(nt.substring(8));
                     e.preventDefault();
@@ -382,6 +385,31 @@ RED.palette = (function() {
             }
             setLabel(sf.type+":"+sf.id,paletteNode,sf.name,marked(sf.info||""));
             setIcon(paletteNode,sf);
+
+            var currentCategory = paletteNode.data('category');
+            var newCategory = (sf.category||"subflows");
+            if (currentCategory !== newCategory) {
+                var category = newCategory.replace(/ /g,"_");
+                createCategory(newCategory,category,category,"node-red");
+
+                var currentCategoryNode = paletteNode.closest(".palette-category");
+                var newCategoryNode = $("#palette-"+category);
+                newCategoryNode.append(paletteNode);
+                if (newCategoryNode.find(".palette_node").length === 1) {
+                    categoryContainers[category].open();
+                }
+
+                paletteNode.data('category',newCategory);
+                if (currentCategoryNode.find(".palette_node").length === 0) {
+                    if (currentCategoryNode.find("i").hasClass("expanded")) {
+                        currentCategoryNode.find(".palette-content").slideToggle();
+                        currentCategoryNode.find("i").toggleClass("expanded");
+                    }
+                }
+
+
+
+            }
         });
     }
 
@@ -471,7 +499,7 @@ RED.palette = (function() {
             categoryList = coreCategories
         }
         categoryList.forEach(function(category){
-            createCategoryContainer(category, RED._("palette.label."+category,{defaultValue:category}));
+            createCategoryContainer(category, category, "palette.label."+category);
         });
 
         $("#palette-collapse-all").on("click", function(e) {
@@ -491,13 +519,20 @@ RED.palette = (function() {
             }
         });
     }
-
+    function getCategories() {
+        var categories = [];
+        $("#palette-container .palette-category").each(function(i,d) {
+            categories.push({id:$(d).data('category'),label:$(d).data('label')});
+        })
+        return categories;
+    }
     return {
         init: init,
         add:addNodeType,
         remove:removeNodeType,
         hide:hideNodeType,
         show:showNodeType,
-        refresh:refreshNodeTypes
+        refresh:refreshNodeTypes,
+        getCategories: getCategories
     };
 })();
diff --git a/editor/js/ui/projects/projectSettings.js b/editor/js/ui/projects/projectSettings.js
index 91dbb57ff..011c9fbe7 100644
--- a/editor/js/ui/projects/projectSettings.js
+++ b/editor/js/ui/projects/projectSettings.js
@@ -49,7 +49,7 @@ RED.projects.settings = (function() {
         var tabContainer;
 
         var trayOptions = {
-            title: "Project Settings",// RED._("menu.label.userSettings"),, // TODO: nls
+            title: RED._("menu.label.userSettings"),
             buttons: [
                 {
                     id: "node-dialog-ok",
@@ -173,14 +173,14 @@ RED.projects.settings = (function() {
         container.empty();
         var bg = $('<span class="button-row" style="position: relative; float: right; margin-right:0;"></span>').appendTo(container);
         var input = $('<input type="text" style="width: calc(100% - 150px); margin-right: 10px;">').val(summary||"").appendTo(container);
-        $('<button class="editor-button">Cancel</button>')
+        $('<button class="editor-button">' + RED._("common.label.cancel") + '</button>')
             .appendTo(bg)
             .click(function(evt) {
                 evt.preventDefault();
                 updateProjectSummary(activeProject.summary, container);
                 editButton.show();
             });
-        $('<button class="editor-button">Save</button>')
+        $('<button class="editor-button">' + RED._("common.label.save") + '</button>')
             .appendTo(bg)
             .click(function(evt) {
                 evt.preventDefault();
@@ -223,7 +223,7 @@ RED.projects.settings = (function() {
         if (summary) {
             container.text(summary).removeClass('node-info-node');
         } else {
-            container.text("No summary available").addClass('node-info-none');// TODO: nls
+            container.text(RED._("sidebar.project.projectSettings.noSummaryAvailable")).addClass('node-info-none');
         }
     }
 
@@ -235,7 +235,7 @@ RED.projects.settings = (function() {
         var summaryContent = $('<div></div>',{style:"color: #999"}).appendTo(summary);
         updateProjectSummary(activeProject.summary, summaryContent);
         if (RED.user.hasPermission("projects.write")) {
-            $('<button class="editor-button editor-button-small" style="float: right;">edit description</button>')
+            $('<button class="editor-button editor-button-small" style="float: right;">' + RED._('sidebar.project.editDescription') + '</button>')
                 .prependTo(summary)
                 .click(function(evt) {
                     evt.preventDefault();
@@ -250,7 +250,7 @@ RED.projects.settings = (function() {
         updateProjectDescription(activeProject, descriptionContent);
 
         if (RED.user.hasPermission("projects.write")) {
-            $('<button class="editor-button editor-button-small" style="float: right;">edit README.md</button>')
+            $('<button class="editor-button editor-button-small" style="float: right;">' + RED._('sidebar.project.editReadme') + '</button>')
                 .prependTo(description)
                 .click(function(evt) {
                     evt.preventDefault();
@@ -316,7 +316,7 @@ RED.projects.settings = (function() {
         //     depsList.editableList('addItem',{index:3, label:"Unused dependencies"}); // TODO: nls
         // }
         if (totalCount === 0) {
-            depsList.editableList('addItem',{index:0, label:"None"}); // TODO: nls
+            depsList.editableList('addItem',{index:0, label:RED._("sidebar.project.projectSettings.none")});
         }
 
     }
@@ -381,7 +381,7 @@ RED.projects.settings = (function() {
     function createDependenciesPane(activeProject) {
         var pane = $('<div id="project-settings-tab-deps" class="project-settings-tab-pane node-help"></div>');
         if (RED.user.hasPermission("projects.write")) {
-            $('<button class="editor-button editor-button-small" style="margin-top:10px;float: right;">edit</button>')
+            $('<button class="editor-button editor-button-small" style="margin-top:10px;float: right;">' + RED._("sidebar.project.projectSettings.edit") + '</button>')
                 .appendTo(pane)
                 .click(function(evt) {
                     evt.preventDefault();
@@ -451,7 +451,7 @@ RED.projects.settings = (function() {
                     var buttons = $('<div class="palette-module-button-group"></div>').appendTo(metaRow);
                     if (RED.user.hasPermission("projects.write")) {
                         if (!entry.installed && RED.settings.theme('palette.editable') !== false) {
-                            $('<a href="#" class="editor-button editor-button-small">install</a>').appendTo(buttons)
+                            $('<a href="#" class="editor-button editor-button-small">' + RED._("sidebar.project.projectSettings.install") + '</a>').appendTo(buttons)
                                 .click(function(evt) {
                                     evt.preventDefault();
                                     RED.palette.editor.install(entry,row,function(err) {
@@ -468,7 +468,7 @@ RED.projects.settings = (function() {
                                     });
                                 })
                         } else if (entry.known && entry.count === 0) {
-                            $('<a href="#" class="editor-button editor-button-small">remove from project</a>').appendTo(buttons)
+                            $('<a href="#" class="editor-button editor-button-small">' + RED._("sidebar.project.projectSettings.removeFromProject") + '</a>').appendTo(buttons)
                                 .click(function(evt) {
                                     evt.preventDefault();
                                     var deps = $.extend(true, {}, activeProject.dependencies);
@@ -484,7 +484,7 @@ RED.projects.settings = (function() {
                                     });
                                 });
                         } else if (!entry.known) {
-                            $('<a href="#" class="editor-button editor-button-small">add to project</a>').appendTo(buttons)
+                            $('<a href="#" class="editor-button editor-button-small">' + RED._("sidebar.project.projectSettings.addToProject") + '</a>').appendTo(buttons)
                                 .click(function(evt) {
                                     evt.preventDefault();
                                     var deps = $.extend(true, {}, activeProject.dependencies);
@@ -723,10 +723,10 @@ RED.projects.settings = (function() {
     // }
 
     function createFilesSection(activeProject,pane) {
-        var title = $('<h3></h3>').text("Files").appendTo(pane);
+        var title = $('<h3></h3>').text(RED._("sidebar.project.projectSettings.files")).appendTo(pane);
         var filesContainer = $('<div class="user-settings-section"></div>').appendTo(pane);
         if (RED.user.hasPermission("projects.write")) {
-            var editFilesButton = $('<button class="editor-button editor-button-small" style="float: right;">edit</button>')
+            var editFilesButton = $('<button class="editor-button editor-button-small" style="float: right;">' + RED._('sidebar.project.projectSettings.edit') + '</button>')
                 .appendTo(title)
                 .click(function(evt) {
                     evt.preventDefault();
@@ -750,7 +750,7 @@ RED.projects.settings = (function() {
 
         // Flow files
         row = $('<div class="user-settings-row"></div>').appendTo(filesContainer);
-        $('<label for=""></label>').text('Flow').appendTo(row);
+        $('<label for=""></label>').text(RED._("sidebar.project.projectSettings.flow")).appendTo(row);
         var flowFileLabel = $('<div class="uneditable-input" style="padding:0">').appendTo(row);
         var flowFileLabelText = $('<span style="display:inline-block; padding: 6px">').text(activeProject.files.flow).appendTo(flowFileLabel);
 
@@ -787,7 +787,7 @@ RED.projects.settings = (function() {
             })
 
         row = $('<div class="user-settings-row"></div>').appendTo(filesContainer);
-        $('<label for=""></label>').text('Credentials').appendTo(row);
+        $('<label for=""></label>').text(RED._("sidebar.project.projectSettings.credentials")).appendTo(row);
         var credFileLabel = $('<div class="uneditable-input">').text(activeProject.files.credentials).appendTo(row);
         var credFileInput = $('<div class="uneditable-input">').text(activeProject.files.credentials).hide().insertAfter(credFileLabel);
 
@@ -899,12 +899,12 @@ RED.projects.settings = (function() {
 
         var credentialFormRows = $('<div>',{style:"margin-top:10px"}).hide().appendTo(credentialStateLabel);
 
-        var credentialSetLabel = $('<div style="margin: 20px 0 10px 5px;">Set the encryption key:</div>').hide().appendTo(credentialFormRows);
-        var credentialChangeLabel = $('<div style="margin: 20px 0 10px 5px;">Change the encryption key:</div>').hide().appendTo(credentialFormRows);
-        var credentialResetLabel = $('<div style="margin: 20px 0 10px 5px;">Reset the encryption key:</div>').hide().appendTo(credentialFormRows);
+        var credentialSetLabel = $('<div style="margin: 20px 0 10px 5px;">' + RED._("sidebar.project.projectSettings.setTheEncryptionKey") + '</div>').hide().appendTo(credentialFormRows);
+        var credentialChangeLabel = $('<div style="margin: 20px 0 10px 5px;">' + RED._("sidebar.project.projectSettings.changeTheEncryptionKey") + '</div>').hide().appendTo(credentialFormRows);
+        var credentialResetLabel = $('<div style="margin: 20px 0 10px 5px;">' + RED._("sidebar.project.projectSettings.resetTheEncryptionKey") + '</div>').hide().appendTo(credentialFormRows);
 
         var credentialSecretExistingRow = $('<div class="user-settings-row user-settings-row-credentials"></div>').appendTo(credentialFormRows);
-        $('<label for=""></label>').text('Current key').appendTo(credentialSecretExistingRow);
+        $('<label for=""></label>').text(RED._("sidebar.project.projectSettings.currentKey")).appendTo(credentialSecretExistingRow);
         var credentialSecretExistingInput = $('<input type="password">').appendTo(credentialSecretExistingRow)
             .on("change keyup paste",function() {
                 if (popover) {
@@ -917,10 +917,10 @@ RED.projects.settings = (function() {
         var credentialSecretNewRow = $('<div class="user-settings-row user-settings-row-credentials"></div>').appendTo(credentialFormRows);
 
 
-        $('<label for=""></label>').text('New key').appendTo(credentialSecretNewRow);
+        $('<label for=""></label>').text(RED._("sidebar.project.projectSettings.newKey")).appendTo(credentialSecretNewRow);
         var credentialSecretNewInput = $('<input type="password">').appendTo(credentialSecretNewRow).on("change keyup paste",checkFiles);
 
-        var credentialResetWarning = $('<div class="form-tips form-warning" style="margin: 10px;"><i class="fa fa-warning"></i> This will delete all existing credentials</div>').hide().appendTo(credentialFormRows);
+        var credentialResetWarning = $('<div class="form-tips form-warning" style="margin: 10px;"><i class="fa fa-warning"></i>' + RED._("sidebar.project.projectSettings.credentialsAlert") + '</div>').hide().appendTo(credentialFormRows);
 
 
         var hideEditForm = function() {
@@ -950,13 +950,13 @@ RED.projects.settings = (function() {
         }
 
         var formButtons = $('<span class="button-row" style="position: relative; float: right; margin-right:0;"></span>').hide().appendTo(filesContainer);
-        $('<button class="editor-button">Cancel</button>')
+        $('<button class="editor-button">' + RED._("common.label.cancel") + '</button>')
             .appendTo(formButtons)
             .click(function(evt) {
                 evt.preventDefault();
                 hideEditForm();
             });
-        var saveButton = $('<button class="editor-button">Save</button>')
+        var saveButton = $('<button class="editor-button">' + RED._("common.label.save") + '</button>')
             .appendTo(formButtons)
             .click(function(evt) {
                 evt.preventDefault();
@@ -1032,13 +1032,13 @@ RED.projects.settings = (function() {
         var updateForm = function() {
             if (activeProject.settings.credentialSecretInvalid) {
                 credentialStateLabel.find(".user-settings-credentials-state-icon").removeClass().addClass("user-settings-credentials-state-icon fa fa-warning");
-                credentialStateLabel.find(".user-settings-credentials-state").text("Invalid encryption key");
+                credentialStateLabel.find(".user-settings-credentials-state").text(RED._("sidebar.project.projectSettings.invalidEncryptionKey"));
             } else if (activeProject.settings.credentialsEncrypted) {
                 credentialStateLabel.find(".user-settings-credentials-state-icon").removeClass().addClass("user-settings-credentials-state-icon fa fa-lock");
-                credentialStateLabel.find(".user-settings-credentials-state").text("Encryption enabled");
+                credentialStateLabel.find(".user-settings-credentials-state").text(RED._("sidebar.project.projectSettings.encryptionEnabled"));
             } else {
                 credentialStateLabel.find(".user-settings-credentials-state-icon").removeClass().addClass("user-settings-credentials-state-icon fa fa-unlock");
-                credentialStateLabel.find(".user-settings-credentials-state").text("Encryption disabled");
+                credentialStateLabel.find(".user-settings-credentials-state").text(RED._("sidebar.project.projectSettings.encryptionDisabled"));
             }
             credentialSecretResetButton.toggleClass('disabled',!activeProject.settings.credentialSecretInvalid && !activeProject.settings.credentialsEncrypted);
             credentialSecretResetButton.prop('disabled',!activeProject.settings.credentialSecretInvalid && !activeProject.settings.credentialsEncrypted);
@@ -1050,7 +1050,7 @@ RED.projects.settings = (function() {
 
     function createLocalBranchListSection(activeProject,pane) {
         var localBranchContainer = $('<div class="user-settings-section"></div>').appendTo(pane);
-        $('<h4></h4>').text("Branches").appendTo(localBranchContainer);
+        $('<h4></h4>').text(RED._("sidebar.project.projectSettings.branches")).appendTo(localBranchContainer);
 
         var row = $('<div class="user-settings-row projects-dialog-list"></div>').appendTo(localBranchContainer);
 
@@ -1063,7 +1063,7 @@ RED.projects.settings = (function() {
                 var container = $('<div class="projects-dialog-list-entry">').appendTo(row);
                 if (entry.empty) {
                     container.addClass('red-ui-search-empty');
-                    container.text("No branches");
+                    container.text(RED._("sidebar.project.projectSettings.noBranches"));
                     return;
                 }
                 if (entry.current) {
@@ -1095,7 +1095,7 @@ RED.projects.settings = (function() {
                         .click(function(e) {
                             e.preventDefault();
                             var spinner = utils.addSpinnerOverlay(row).addClass('projects-dialog-spinner-contain');
-                            var notification = RED.notify("Are you sure you want to delete the local branch '"+entry.name+"'? This cannot be undone.", {
+                            var notification = RED.notify(RED._("sidebar.project.projectSettings.deleteConfirm", { name: entry.name }), {
                                 type: "warning",
                                 modal: true,
                                 fixed: true,
@@ -1123,7 +1123,7 @@ RED.projects.settings = (function() {
                                                     },
                                                     400: {
                                                         'git_delete_branch_unmerged': function(error) {
-                                                            notification = RED.notify("The local branch '"+entry.name+"' has unmerged changes that will be lost. Are you sure you want to delete it?", {
+                                                            notification = RED.notify(RED._("sidebar.project.projectSettings.unmergedConfirm", { name: entry.name }), {
                                                                 type: "warning",
                                                                 modal: true,
                                                                 fixed: true,
@@ -1135,7 +1135,7 @@ RED.projects.settings = (function() {
                                                                             notification.close();
                                                                         }
                                                                     },{
-                                                                        text: 'Delete unmerged branch',
+                                                                        text: RED._("sidebar.project.projectSettings.deleteUnmergedBranch"),
                                                                         click: function() {
                                                                             options.url += "?force=true";
                                                                             notification.close();
@@ -1183,14 +1183,14 @@ RED.projects.settings = (function() {
     }
 
     function createRemoteRepositorySection(activeProject,pane) {
-        $('<h3></h3>').text("Version Control").appendTo(pane);
+        $('<h3></h3>').text(RED._("sidebar.project.projectSettings.versionControl")).appendTo(pane);
 
         createLocalBranchListSection(activeProject,pane);
 
         var repoContainer = $('<div class="user-settings-section"></div>').appendTo(pane);
-        var title = $('<h4></h4>').text("Git remotes").appendTo(repoContainer);
+        var title = $('<h4></h4>').text(RED._("sidebar.project.projectSettings.gitRemotes")).appendTo(repoContainer);
 
-        var editRepoButton = $('<button class="editor-button editor-button-small" style="float: right; margin-right: 10px;">add remote</button>')
+        var editRepoButton = $('<button class="editor-button editor-button-small" style="float: right; margin-right: 10px;">' + RED._("sidebar.project.projectSettings.addRemote") + '</button>')
             .appendTo(title)
             .click(function(evt) {
                 editRepoButton.attr('disabled',true);
@@ -1221,7 +1221,7 @@ RED.projects.settings = (function() {
                 var container = $('<div class="projects-dialog-list-entry">').appendTo(row);
                 if (entry.empty) {
                     container.addClass('red-ui-search-empty');
-                    container.text("No remotes");
+                    container.text(RED._("sidebar.project.projectSettings.noRemotes"));
                     return;
                 } else {
                     $('<span class="entry-icon"><i class="fa fa-globe"></i></span>').appendTo(container);
@@ -1240,7 +1240,7 @@ RED.projects.settings = (function() {
                         .click(function(e) {
                             e.preventDefault();
                             var spinner = utils.addSpinnerOverlay(row).addClass('projects-dialog-spinner-contain');
-                            var notification = RED.notify("Are you sure you want to delete the remote '"+entry.name+"'?", {
+                            var notification = RED.notify(RED._("sidebar.project.projectSettings.deleteRemoteConfrim", { name: entry.name }), {
                                 type: "warning",
                                 modal: true,
                                 fixed: true,
@@ -1252,7 +1252,7 @@ RED.projects.settings = (function() {
                                             notification.close();
                                         }
                                     },{
-                                        text: 'Delete remote',
+                                        text: RED._("sidebar.project.projectSettings.deleteRemote"),
                                         click: function() {
                                             notification.close();
 
@@ -1315,10 +1315,10 @@ RED.projects.settings = (function() {
             // var validRepo = /^(?:file|git|ssh|https?|[\d\w\.\-_]+@[\w\.]+):(?:\/\/)?[\w\.@:\/~_-]+(?:\.git)?(?:\/?|\#[\d\w\.\-_]+?)$/.test(remoteURLInput.val());
             var validRepo = repo.length > 0 && !/\s/.test(repo);
             if (/^https?:\/\/[^/]+@/i.test(repo)) {
-                remoteURLLabel.text("Do not include the username/password in the url");
+                remoteURLLabel.text(RED._("sidebar.project.projectSettings.urlRule2"));
                 validRepo = false;
             } else {
-                remoteURLLabel.text("https://, ssh:// or file://");
+                remoteURLLabel.text(RED._("sidebar.project.projectSettings.urlRule"));
             }
             saveButton.attr('disabled',(!validName || !validRepo))
             remoteNameInput.toggleClass('input-error',remoteNameInputChanged&&!validName);
@@ -1332,22 +1332,22 @@ RED.projects.settings = (function() {
         var remoteNameInputChanged = false;
         var remoteURLInputChanged = false;
 
-        $('<div class="projects-dialog-list-dialog-header">').text('Add remote').appendTo(addRemoteDialog);
+        $('<div class="projects-dialog-list-dialog-header">').text(RED._('sidebar.project.projectSettings.addRemote2')).appendTo(addRemoteDialog);
 
         row = $('<div class="user-settings-row"></div>').appendTo(addRemoteDialog);
-        $('<label for=""></label>').text('Remote name').appendTo(row);
+        $('<label for=""></label>').text(RED._("sidebar.project.projectSettings.remoteName")).appendTo(row);
         var remoteNameInput = $('<input type="text">').appendTo(row).on("change keyup paste",function() {
             remoteNameInputChanged = true;
             validateForm();
         });
-        $('<label class="projects-edit-form-sublabel"><small>Must contain only A-Z 0-9 _ -</small></label>').appendTo(row).find("small");
+        $('<label class="projects-edit-form-sublabel"><small>' + RED._("sidebar.project.projectSettings.nameRule") + '</small></label>').appendTo(row).find("small");
         row = $('<div class="user-settings-row"></div>').appendTo(addRemoteDialog);
-        $('<label for=""></label>').text('URL').appendTo(row);
+        $('<label for=""></label>').text(RED._("sidebar.project.projectSettings.url")).appendTo(row);
         var remoteURLInput = $('<input type="text">').appendTo(row).on("change keyup paste",function() {
             remoteURLInputChanged = true;
             validateForm()
         });
-        var remoteURLLabel = $('<label class="projects-edit-form-sublabel"><small>https://, ssh:// or file://</small></label>').appendTo(row).find("small");
+        var remoteURLLabel = $('<label class="projects-edit-form-sublabel"><small>' + RED._("sidebar.project.projectSettings.urlRule") +'</small></label>').appendTo(row).find("small");
 
         var hideEditForm = function() {
             editRepoButton.attr('disabled',false);
@@ -1361,13 +1361,13 @@ RED.projects.settings = (function() {
         }
         var formButtons = $('<span class="button-row" style="position: relative; float: right; margin: 10px;"></span>')
             .appendTo(addRemoteDialog);
-        $('<button class="editor-button">Cancel</button>')
+        $('<button class="editor-button">' + RED._("common.label.cancel") + '</button>')
             .appendTo(formButtons)
             .click(function(evt) {
                 evt.preventDefault();
                 hideEditForm();
             });
-        var saveButton = $('<button class="editor-button">Add remote</button>')
+        var saveButton = $('<button class="editor-button">' + RED._("sidebar.project.projectSettings.addRemote2") + '</button>')
             .appendTo(formButtons)
             .click(function(evt) {
                 evt.preventDefault();
@@ -1484,19 +1484,19 @@ RED.projects.settings = (function() {
         utils = _utils;
         addPane({
             id:'main',
-            title: "Project", // TODO: nls
+            title: RED._("sidebar.project.name"),
             get: createMainPane,
             close: function() { }
         });
         addPane({
             id:'deps',
-            title: "Dependencies", // TODO: nls
+            title: RED._("sidebar.project.dependencies"),
             get: createDependenciesPane,
             close: function() { }
         });
         addPane({
             id:'settings',
-            title: "Settings", // TODO: nls
+            title: RED._("sidebar.project.settings"),
             get: createSettingsPane,
             close: function() {
                 if (popover) {
diff --git a/editor/js/ui/state.js b/editor/js/ui/state.js
index 1b0990c58..b14bc915b 100644
--- a/editor/js/ui/state.js
+++ b/editor/js/ui/state.js
@@ -23,5 +23,6 @@ RED.state = {
     EXPORT: 6,
     IMPORT: 7,
     IMPORT_DRAGGING: 8,
-    QUICK_JOINING: 9
+    QUICK_JOINING: 9,
+    PANNING: 10
 }
diff --git a/editor/js/ui/tab-info.js b/editor/js/ui/tab-info.js
index 340a6bd74..83623c878 100644
--- a/editor/js/ui/tab-info.js
+++ b/editor/js/ui/tab-info.js
@@ -170,25 +170,41 @@ RED.sidebar.info = (function() {
                 if (node.type === "tab") {
                     propRow = $('<tr class="node-info-node-row"><td>'+RED._("sidebar.info.status")+'</td><td></td></tr>').appendTo(tableBody);
                     $(propRow.children()[1]).text((!!!node.disabled)?RED._("sidebar.info.enabled"):RED._("sidebar.info.disabled"))
+                } else if (node.type === "subflow") {
+                    propRow = $('<tr class="node-info-node-row"><td>'+RED._("subflow.category")+'</td><td></td></tr>').appendTo(tableBody);
+                    var category = node.category||"subflows";
+                    $(propRow.children()[1]).text(RED._("palette.label."+category,{defaultValue:category}))
                 }
             } else {
                 propRow = $('<tr class="node-info-node-row"><td>'+RED._("sidebar.info.node")+"</td><td></td></tr>").appendTo(tableBody);
                 RED.utils.createObjectElement(node.id).appendTo(propRow.children()[1]);
 
 
-                if (node.type !== "subflow" && node.name) {
+                if (node.type !== "subflow" && node.type !== "unknown" && node.name) {
                     propRow = $('<tr class="node-info-node-row"><td>'+RED._("common.label.name")+'</td><td></td></tr>').appendTo(tableBody);
                     $('<span class="bidiAware" dir="'+RED.text.bidi.resolveBaseTextDir(node.name)+'"></span>').text(node.name).appendTo(propRow.children()[1]);
                 }
                 if (!m) {
                     propRow = $('<tr class="node-info-node-row"><td>'+RED._("sidebar.info.type")+"</td><td></td></tr>").appendTo(tableBody);
-                    $(propRow.children()[1]).text(node.type);
+                    $(propRow.children()[1]).text((node.type === "unknown")?node._orig.type:node.type);
+                    if (node.type === "unknown") {
+                        $('<span style="float: right; font-size: 0.8em"><i class="fa fa-warning"></i></span>').prependTo($(propRow.children()[1]))
+                    }
                 }
-
                 if (!m && node.type != "subflow" && node.type != "comment") {
-                    if (node._def) {
+                    var defaults;
+                    if (node.type === 'unknown') {
+                        defaults = {};
+                        Object.keys(node._orig).forEach(function(k) {
+                            if (k !== 'type') {
+                                defaults[k] = {};
+                            }
+                        })
+                    } else if (node._def) {
+                        defaults = node._def.defaults;
+                    }
+                    if (defaults) {
                         var count = 0;
-                        var defaults = node._def.defaults;
                         for (var n in defaults) {
                             if (n != "name" && defaults.hasOwnProperty(n)) {
                                 var val = node[n];
@@ -235,6 +251,9 @@ RED.sidebar.info = (function() {
                 }
             }
             if (m) {
+                propRow = $('<tr class="node-info-node-row"><td>'+RED._("subflow.category")+'</td><td></td></tr>').appendTo(tableBody);
+                var category = subflowNode.category||"subflows";
+                $(propRow.children()[1]).text(RED._("palette.label."+category,{defaultValue:category}))
                 $('<tr class="node-info-subflow-row"><td>'+RED._("sidebar.info.instances")+"</td><td>"+subflowUserCount+'</td></tr>').appendTo(tableBody);
             }
 
diff --git a/editor/js/ui/view-navigator.js b/editor/js/ui/view-navigator.js
new file mode 100644
index 000000000..da1908982
--- /dev/null
+++ b/editor/js/ui/view-navigator.js
@@ -0,0 +1,164 @@
+/**
+ * Copyright 2016 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+
+ RED.view.navigator = (function() {
+
+     var nav_scale = 25;
+     var nav_width = 5000/nav_scale;
+     var nav_height = 5000/nav_scale;
+
+     var navContainer;
+     var navBox;
+     var navBorder;
+     var navVis;
+     var scrollPos;
+     var scaleFactor;
+     var chartSize;
+     var dimensions;
+     var isDragging;
+     var isShowing = false;
+
+     function refreshNodes() {
+         if (!isShowing) {
+             return;
+         }
+         var navNode = navVis.selectAll(".navnode").data(RED.view.getActiveNodes(),function(d){return d.id});
+         navNode.exit().remove();
+         navNode.enter().insert("rect")
+             .attr('class','navnode')
+             .attr("pointer-events", "none");
+         navNode.each(function(d) {
+             d3.select(this).attr("x",function(d) { return (d.x-d.w/2)/nav_scale })
+             .attr("y",function(d) { return (d.y-d.h/2)/nav_scale })
+             .attr("width",function(d) { return Math.max(9,d.w/nav_scale) })
+             .attr("height",function(d) { return Math.max(3,d.h/nav_scale) })
+             .attr("fill",function(d) { return d._def.color;})
+         });
+     }
+     function onScroll() {
+         if (!isDragging) {
+             resizeNavBorder();
+         }
+     }
+     function resizeNavBorder() {
+         if (navBorder) {
+             scaleFactor = RED.view.scale();
+             chartSize = [ $("#chart").width(), $("#chart").height()];
+             scrollPos = [$("#chart").scrollLeft(),$("#chart").scrollTop()];
+             navBorder.attr('x',scrollPos[0]/nav_scale)
+                      .attr('y',scrollPos[1]/nav_scale)
+                      .attr('width',chartSize[0]/nav_scale/scaleFactor)
+                      .attr('height',chartSize[1]/nav_scale/scaleFactor)
+         }
+     }
+
+     return {
+         init: function() {
+
+             $(window).resize(resizeNavBorder);
+             RED.events.on("sidebar:resize",resizeNavBorder);
+
+             var hideTimeout;
+
+             navContainer = $('<div>').css({
+                 "position":"absolute",
+                 "bottom":$("#workspace-footer").height(),
+                 "right":0,
+                 zIndex: 1
+             }).appendTo("#workspace").hide();
+
+             navBox = d3.select(navContainer[0])
+                 .append("svg:svg")
+                 .attr("width", nav_width)
+                 .attr("height", nav_height)
+                 .attr("pointer-events", "all")
+                 .style({
+                     position: "absolute",
+                     bottom: 0,
+                     right:0,
+                     zIndex: 101,
+                     "border-left": "1px solid #ccc",
+                     "border-top": "1px solid #ccc",
+                     background: "rgba(245,245,245,0.5)",
+                     "box-shadow": "-1px 0 3px rgba(0,0,0,0.1)"
+                 });
+
+             navBox.append("rect").attr("x",0).attr("y",0).attr("width",nav_width).attr("height",nav_height).style({
+                 fill:"none",
+                 stroke:"none",
+                 pointerEvents:"all"
+             }).on("mousedown", function() {
+                 // Update these in case they have changed
+                 scaleFactor = RED.view.scale();
+                 chartSize = [ $("#chart").width(), $("#chart").height()];
+                 dimensions = [chartSize[0]/nav_scale/scaleFactor, chartSize[1]/nav_scale/scaleFactor];
+                 var newX = Math.max(0,Math.min(d3.event.offsetX+dimensions[0]/2,nav_width)-dimensions[0]);
+                 var newY = Math.max(0,Math.min(d3.event.offsetY+dimensions[1]/2,nav_height)-dimensions[1]);
+                 navBorder.attr('x',newX).attr('y',newY);
+                 isDragging = true;
+                 $("#chart").scrollLeft(newX*nav_scale*scaleFactor);
+                 $("#chart").scrollTop(newY*nav_scale*scaleFactor);
+             }).on("mousemove", function() {
+                 if (!isDragging) { return }
+                 if (d3.event.buttons === 0) {
+                     isDragging = false;
+                     return;
+                 }
+                 var newX = Math.max(0,Math.min(d3.event.offsetX+dimensions[0]/2,nav_width)-dimensions[0]);
+                 var newY = Math.max(0,Math.min(d3.event.offsetY+dimensions[1]/2,nav_height)-dimensions[1]);
+                 navBorder.attr('x',newX).attr('y',newY);
+                 $("#chart").scrollLeft(newX*nav_scale*scaleFactor);
+                 $("#chart").scrollTop(newY*nav_scale*scaleFactor);
+             }).on("mouseup", function() {
+                 isDragging = false;
+             })
+
+             navBorder = navBox.append("rect")
+                 .attr("stroke-dasharray","5,5")
+                 .attr("pointer-events", "none")
+                 .style({
+                     stroke: "#999",
+                     strokeWidth: 1,
+                     fill: "white",
+                 });
+
+             navVis = navBox.append("svg:g")
+
+
+            $("#btn-navigate").click(function(evt) {
+                evt.preventDefault();
+                if (!isShowing) {
+                    isShowing = true;
+                    $("#btn-navigate").addClass("selected");
+                    resizeNavBorder();
+                    refreshNodes();
+                    $("#chart").on("scroll",onScroll);
+                    navContainer.fadeIn(200);
+                } else {
+                    isShowing = false;
+                    navContainer.fadeOut(100);
+                    $("#chart").off("scroll",onScroll);
+                    $("#btn-navigate").removeClass("selected");
+                }
+            })
+        },
+        refresh: refreshNodes,
+        resize: resizeNavBorder
+    }
+
+
+})();
diff --git a/editor/js/ui/view.js b/editor/js/ui/view.js
index ba568459c..3332f9916 100644
--- a/editor/js/ui/view.js
+++ b/editor/js/ui/view.js
@@ -58,7 +58,10 @@ RED.view = (function() {
         lastClickNode = null,
         dblClickPrimed = null,
         clickTime = 0,
-        clickElapsed = 0;
+        clickElapsed = 0,
+        scroll_position = [],
+        quickAddActive = false,
+        quickAddLink = null;
 
     var clipboard = "";
 
@@ -73,6 +76,8 @@ RED.view = (function() {
     var PORT_TYPE_INPUT = 1;
     var PORT_TYPE_OUTPUT = 0;
 
+    var chart = $("#chart");
+
     var outer = d3.select("#chart")
         .append("svg:svg")
         .attr("width", space_width)
@@ -94,6 +99,16 @@ RED.view = (function() {
         .on("mousemove", canvasMouseMove)
         .on("mousedown", canvasMouseDown)
         .on("mouseup", canvasMouseUp)
+        .on("mouseenter", function() {
+            if (lasso) {
+                if (d3.event.buttons !== 1) {
+                    lasso.remove();
+                    lasso = null;
+                }
+            } else if (mouse_mode === RED.state.PANNING && d3.event.buttons !== 4) {
+                resetMouseVars();
+            }
+        })
         .on("touchend", function() {
             clearTimeout(touchStartTime);
             touchStartTime = null;
@@ -283,7 +298,6 @@ RED.view = (function() {
     function init() {
 
         RED.events.on("workspace:change",function(event) {
-            var chart = $("#chart");
             if (event.old !== 0) {
                 workspaceScrollPositions[event.old] = {
                     left:chart.scrollLeft(),
@@ -320,6 +334,8 @@ RED.view = (function() {
             redraw();
         });
 
+        RED.view.navigator.init();
+
         $("#btn-zoom-out").click(function() {zoomOut();});
         $("#btn-zoom-zero").click(function() {zoomZero();});
         $("#btn-zoom-in").click(function() {zoomIn();});
@@ -526,6 +542,15 @@ RED.view = (function() {
     function canvasMouseDown() {
         var point;
 
+        if (d3.event.button === 1) {
+            // Middle Click pan
+            mouse_mode = RED.state.PANNING;
+            mouse_position = [d3.event.pageX,d3.event.pageY]
+            scroll_position = [chart.scrollLeft(),chart.scrollTop()];
+
+            return;
+        }
+
         if (!mousedown_node && !mousedown_link) {
             selected_link = null;
             updateSelection();
@@ -546,14 +571,16 @@ RED.view = (function() {
                     mouse_mode = RED.state.QUICK_JOINING;
                     $(window).on('keyup',disableQuickJoinEventHandler);
                 }
-
+                quickAddActive = true;
                 RED.typeSearch.show({
                     x:d3.event.clientX-mainPos.left-node_width/2,
                     y:d3.event.clientY-mainPos.top-node_height/2,
                     cancel: function() {
+                        quickAddActive = false;
                         resetMouseVars();
                     },
                     add: function(type) {
+                        quickAddActive = false;
                         var result = addNode(type);
                         if (!result) {
                             return;
@@ -562,11 +589,10 @@ RED.view = (function() {
                         var historyEvent = result.historyEvent;
                         nn.x = point[0];
                         nn.y = point[1];
-                        if (mouse_mode === RED.state.QUICK_JOINING) {
-                            if (drag_lines.length > 0) {
-                                var drag_line = drag_lines[0];
+                        if (mouse_mode === RED.state.QUICK_JOINING || quickAddLink) {
+                            if (quickAddLink || drag_lines.length > 0) {
+                                var drag_line = quickAddLink||drag_lines[0];
                                 var src = null,dst,src_port;
-
                                 if (drag_line.portType === PORT_TYPE_OUTPUT && nn.inputs > 0) {
                                     src = drag_line.node;
                                     src_port = drag_line.port;
@@ -581,9 +607,9 @@ RED.view = (function() {
                                     RED.nodes.addLink(link);
                                     historyEvent.links = [link];
                                     hideDragLines();
-                                    if (drag_line.portType === PORT_TYPE_OUTPUT && nn.outputs > 0) {
+                                    if (!quickAddLink && drag_line.portType === PORT_TYPE_OUTPUT && nn.outputs > 0) {
                                         showDragLines([{node:nn,port:0,portType:PORT_TYPE_OUTPUT}]);
-                                    } else if (drag_line.portType === PORT_TYPE_INPUT && nn.inputs > 0) {
+                                    } else if (!quickAddLink && drag_line.portType === PORT_TYPE_INPUT && nn.inputs > 0) {
                                         showDragLines([{node:nn,port:0,portType:PORT_TYPE_INPUT}]);
                                     } else {
                                         resetMouseVars();
@@ -601,9 +627,9 @@ RED.view = (function() {
                                     resetMouseVars();
                                 }
                             }
+                            quickAddLink = null;
                         }
 
-
                         RED.history.push(historyEvent);
                         RED.nodes.add(nn);
                         RED.editor.validateNode(nn);
@@ -644,7 +670,6 @@ RED.view = (function() {
     function canvasMouseMove() {
         var i;
         var node;
-        mouse_position = d3.touches(this)[0]||d3.mouse(this);
         // Prevent touch scrolling...
         //if (d3.touches(this)[0]) {
         //    d3.event.preventDefault();
@@ -655,6 +680,22 @@ RED.view = (function() {
         //if (point[0]-container.scrollLeft < 30 && container.scrollLeft > 0) { container.scrollLeft -= 15; }
         //console.log(d3.mouse(this),container.offsetWidth,container.offsetHeight,container.scrollLeft,container.scrollTop);
 
+        if (mouse_mode === RED.state.PANNING) {
+
+            var pos = [d3.event.pageX,d3.event.pageY];
+            var deltaPos = [
+                mouse_position[0]-pos[0],
+                mouse_position[1]-pos[1]
+            ];
+
+            chart.scrollLeft(scroll_position[0]+deltaPos[0])
+            chart.scrollTop(scroll_position[1]+deltaPos[1])
+            return
+        }
+
+        mouse_position = d3.touches(this)[0]||d3.mouse(this);
+
+
         if (lasso) {
             var ox = parseInt(lasso.attr("ox"));
             var oy = parseInt(lasso.attr("oy"));
@@ -906,6 +947,10 @@ RED.view = (function() {
     function canvasMouseUp() {
         var i;
         var historyEvent;
+        if (mouse_mode === RED.state.PANNING) {
+            resetMouseVars();
+            return
+        }
         if (mouse_mode === RED.state.QUICK_JOINING) {
             return;
         }
@@ -1020,17 +1065,20 @@ RED.view = (function() {
     function zoomIn() {
         if (scaleFactor < 2) {
             scaleFactor += 0.1;
+            RED.view.navigator.resize();
             redraw();
         }
     }
     function zoomOut() {
         if (scaleFactor > 0.3) {
             scaleFactor -= 0.1;
+            RED.view.navigator.resize();
             redraw();
         }
     }
     function zoomZero() {
         scaleFactor = 1;
+        RED.view.navigator.resize();
         redraw();
     }
 
@@ -1367,6 +1415,9 @@ RED.view = (function() {
     function disableQuickJoinEventHandler(evt) {
         // Check for ctrl (all browsers), "Meta" (Chrome/FF), keyCode 91 (Safari)
         if (evt.keyCode === 17 || evt.key === "Meta" || evt.keyCode === 91) {
+            if (quickAddActive && drag_lines.length > 0) {
+                quickAddLink = drag_lines[0];
+            }
             resetMouseVars();
             hideDragLines();
             redraw();
@@ -1652,7 +1703,9 @@ RED.view = (function() {
         clickElapsed = now-clickTime;
         clickTime = now;
 
-        dblClickPrimed = (lastClickNode == mousedown_node);
+        dblClickPrimed = (lastClickNode == mousedown_node &&
+            d3.event.buttons === 1 &&
+            !d3.event.shiftKey && !d3.event.metaKey && !d3.event.altKey && !d3.event.ctrlKey);
         lastClickNode = mousedown_node;
 
         var i;
@@ -2502,7 +2555,7 @@ RED.view = (function() {
                 }
             ).classed("link_selected", false);
         }
-
+        RED.view.navigator.refresh();
         if (d3.event) {
             d3.event.preventDefault();
         }
@@ -2776,7 +2829,9 @@ RED.view = (function() {
                 gridSize = Math.max(5,v);
                 updateGrid();
             }
+        },
+        getActiveNodes: function() {
+            return activeNodes;
         }
-
     };
 })();
diff --git a/editor/sass/editor.scss b/editor/sass/editor.scss
index af116c9ef..c4df4791b 100644
--- a/editor/sass/editor.scss
+++ b/editor/sass/editor.scss
@@ -353,3 +353,64 @@
     }
 
 }
+#node-settings-icon {
+    margin-left: 10px;
+    width: calc(100% - 163px);
+}
+.red-ui-icon-picker {
+    position: absolute;
+    border: 1px solid $primary-border-color;
+    box-shadow: 0 1px 6px -3px black;
+    background: white;
+    z-Index: 21;
+    display: none;
+    select {
+        box-sizing: border-box;
+        margin: 3px;
+        width: calc(100% - 6px);
+    }
+}
+.red-ui-icon-list {
+    width: 308px;
+    height: 200px;
+    overflow-y: scroll;
+    line-height: 0px;
+}
+.red-ui-icon-list-icon {
+    display: inline-block;
+    margin: 2px;
+    padding: 4px;
+    cursor: pointer;
+    border-radius: 4px;
+    &:hover {
+        background: lighten($node-selected-color,20%);
+    }
+    &.selected {
+        background: lighten($node-selected-color,20%);
+        .red-ui-search-result-node {
+            border-color: white;
+        }
+    }
+}
+.red-ui-icon-list-module {
+    background: $palette-header-background;
+    font-size: 0.9em;
+    padding: 3px;
+    color: #666;
+    clear: both;
+    i {
+        margin-right: 5px;
+    }
+}
+.red-ui-icon-meta {
+    border-top: 1px solid $secondary-border-color;
+    span {
+        padding: 4px;
+        color: #666;
+        font-size: 0.9em;
+    }
+    button {
+        float: right;
+        margin: 2px;
+    }
+}
diff --git a/editor/sass/mixins.scss b/editor/sass/mixins.scss
index 7201ef544..bdef0ebc4 100644
--- a/editor/sass/mixins.scss
+++ b/editor/sass/mixins.scss
@@ -134,15 +134,18 @@
     color: $workspace-button-toggle-color !important;
     background:$workspace-button-background-active;
     margin-bottom: 1px;
-    &.selected:not(.disabled) {
+
+    &.selected:not(.disabled):not(:disabled) {
         color: $workspace-button-toggle-color-selected !important;
         background: $workspace-button-background;
         border-bottom-width: 2px;
         border-bottom-color: $form-input-border-selected-color;
         margin-bottom: 0;
-        cursor: default;
+        &:not(.single) {
+            cursor: default;
+        }
     }
-    &.disabled {
+    &.disabled,&:disabled {
         color: $workspace-button-toggle-color-disabled !important;
     }
 }
@@ -203,7 +206,7 @@
     height: 25px;
     line-height: 23px;
     padding: 0 10px;
-
+    user-select: none;
 
     .button-group:not(:last-child) {
         margin-right: 5px;
@@ -227,6 +230,7 @@
     font-size: 11px;
     line-height: 17px;
     height: 18px;
+    width: 18px;
     &.text-button {
         width: auto;
         padding: 0 5px;
diff --git a/editor/sass/tabs.scss b/editor/sass/tabs.scss
index 488f4f3c9..2dfe511e2 100644
--- a/editor/sass/tabs.scss
+++ b/editor/sass/tabs.scss
@@ -214,12 +214,11 @@
     border-bottom: 1px solid $primary-border-color;
     z-index: 2;
     a {
-        @include workspace-button;
+        @include workspace-button-toggle;
         line-height: 26px;
         height: 28px;
         width: 28px;
         margin: 4px 3px 3px;
-        border: 1px solid $primary-border-color;
         z-index: 2;
         &.red-ui-tab-link-button {
             &:not(.active) {
diff --git a/editor/sass/workspace.scss b/editor/sass/workspace.scss
index 59b8fcf75..14b6eebb0 100644
--- a/editor/sass/workspace.scss
+++ b/editor/sass/workspace.scss
@@ -47,7 +47,9 @@
 .workspace-footer-button {
     @include component-footer-button;
 }
-
+.workspace-footer-button-toggle {
+    @include component-footer-button-toggle;
+}
 #workspace-footer {
     @include component-footer;
 }
diff --git a/editor/templates/index.mst b/editor/templates/index.mst
index b8d0ac0c0..846150118 100644
--- a/editor/templates/index.mst
+++ b/editor/templates/index.mst
@@ -51,6 +51,7 @@
             <a class="workspace-footer-button" id="btn-zoom-out" href="#"><i class="fa fa-minus"></i></a>
             <a class="workspace-footer-button" id="btn-zoom-zero" href="#"><i class="fa fa-circle-o"></i></a>
             <a class="workspace-footer-button" id="btn-zoom-in" href="#"><i class="fa fa-plus"></i></a>
+            <a class="workspace-footer-button-toggle single" id="btn-navigate" href="#"><i class="fa fa-map-o"></i></a>
         </div>
         <div id="editor-shade" class="hide"></div>
     </div>
@@ -131,6 +132,10 @@
         <i class="fa fa-tag"></i>
         <label for="subflow-input-name" data-i18n="common.label.name"></label><input type="text" id="subflow-input-name">
     </div>
+    <div class="form-row">
+        <i class="fa fa-folder-o"></i>
+        <label for="subflow-input-category" data-i18n="editor:subflow.category"></label><select style="width: 250px;" id="subflow-input-category"></select><input style="display:none; margin-left: 10px; width:calc(100% - 250px)" type="text" id="subflow-input-custom-category">
+    </div>
     <div class="form-row" style="margin-bottom: 0px;">
         <label for="subflow-input-info" data-i18n="editor:subflow.info"></label>
         <a href="https://help.github.com/articles/markdown-basics/" style="font-size: 0.8em; float: right;" data-i18n="[html]subflow.format"></a>
diff --git a/nodes/core/hardware/36-rpi-gpio.js b/nodes/core/hardware/36-rpi-gpio.js
index cc1a8ab2a..0a21f578a 100644
--- a/nodes/core/hardware/36-rpi-gpio.js
+++ b/nodes/core/hardware/36-rpi-gpio.js
@@ -6,35 +6,36 @@ module.exports = function(RED) {
     var fs = require('fs');
 
     var gpioCommand = __dirname+'/nrgpio';
+    var allOK = true;
 
     try {
         var cpuinfo = fs.readFileSync("/proc/cpuinfo").toString();
-        if (cpuinfo.indexOf(": BCM") === -1) { throw "Info : "+RED._("rpi-gpio.errors.ignorenode"); }
-    } catch(err) {
-        throw "Info : "+RED._("rpi-gpio.errors.ignorenode");
-    }
-
-    try {
-        fs.statSync("/usr/share/doc/python-rpi.gpio"); // test on Raspbian
-        // /usr/lib/python2.7/dist-packages/RPi/GPIO
-    } catch(err) {
+        if (cpuinfo.indexOf(": BCM") === -1) {
+            allOK = false;
+            RED.log.warn("rpi-gpio : "+RED._("rpi-gpio.errors.ignorenode"));
+        }
         try {
-            fs.statSync("/usr/lib/python2.7/site-packages/RPi/GPIO"); // test on Arch
-        }
-        catch(err) {
+            fs.statSync("/usr/share/doc/python-rpi.gpio"); // test on Raspbian
+            // /usr/lib/python2.7/dist-packages/RPi/GPIO
+        } catch(err) {
             try {
-                fs.statSync("/usr/lib/python2.7/dist-packages/RPi/GPIO"); // test on Hypriot
-            }
-            catch(err) {
-                RED.log.warn(RED._("rpi-gpio.errors.libnotfound"));
-                throw "Warning : "+RED._("rpi-gpio.errors.libnotfound");
+                fs.statSync("/usr/lib/python2.7/site-packages/RPi/GPIO"); // test on Arch
+            } catch(err) {
+                try {
+                    fs.statSync("/usr/lib/python2.7/dist-packages/RPi/GPIO"); // test on Hypriot
+                } catch(err) {
+                    RED.log.warn("rpi-gpio : "+RED._("rpi-gpio.errors.libnotfound"));
+                    allOK = false;
+                }
             }
         }
-    }
-
-    if ( !(1 & parseInt((fs.statSync(gpioCommand).mode & parseInt("777", 8)).toString(8)[0]) )) {
-        RED.log.error(RED._("rpi-gpio.errors.needtobeexecutable",{command:gpioCommand}));
-        throw "Error : "+RED._("rpi-gpio.errors.mustbeexecutable");
+        if ( !(1 & parseInt((fs.statSync(gpioCommand).mode & parseInt("777", 8)).toString(8)[0]) )) {
+            RED.log.warn("rpi-gpio : "+RED._("rpi-gpio.errors.needtobeexecutable",{command:gpioCommand}));
+            allOK = false;
+        }
+    } catch(err) {
+        allOK = false;
+        RED.log.warn("rpi-gpio : "+RED._("rpi-gpio.errors.ignorenode"));
     }
 
     // the magic to make python print stuff immediately
@@ -61,48 +62,62 @@ module.exports = function(RED) {
             }
         }
 
-        if (node.pin !== undefined) {
-            node.child = spawn(gpioCommand, ["in",node.pin,node.intype,node.debounce]);
-            node.running = true;
-            node.status({fill:"green",shape:"dot",text:"common.status.ok"});
+        if (allOK === true) {
+            if (node.pin !== undefined) {
+                node.child = spawn(gpioCommand, ["in",node.pin,node.intype,node.debounce]);
+                node.running = true;
+                node.status({fill:"green",shape:"dot",text:"common.status.ok"});
 
-            node.child.stdout.on('data', function (data) {
-                var d = data.toString().trim().split("\n");
-                for (var i = 0; i < d.length; i++) {
-                    if (d[i] === '') { return; }
-                    if (node.running && node.buttonState !== -1 && !isNaN(Number(d[i])) && node.buttonState !== d[i]) {
-                        node.send({ topic:"pi/"+node.pin, payload:Number(d[i]) });
+                node.child.stdout.on('data', function (data) {
+                    var d = data.toString().trim().split("\n");
+                    for (var i = 0; i < d.length; i++) {
+                        if (d[i] === '') { return; }
+                        if (node.running && node.buttonState !== -1 && !isNaN(Number(d[i])) && node.buttonState !== d[i]) {
+                            node.send({ topic:"pi/"+node.pin, payload:Number(d[i]) });
+                        }
+                        node.buttonState = d[i];
+                        node.status({fill:"green",shape:"dot",text:d[i]});
+                        if (RED.settings.verbose) { node.log("out: "+d[i]+" :"); }
                     }
-                    node.buttonState = d[i];
-                    node.status({fill:"green",shape:"dot",text:d[i]});
-                    if (RED.settings.verbose) { node.log("out: "+d[i]+" :"); }
-                }
-            });
+                });
 
-            node.child.stderr.on('data', function (data) {
-                if (RED.settings.verbose) { node.log("err: "+data+" :"); }
-            });
+                node.child.stderr.on('data', function (data) {
+                    if (RED.settings.verbose) { node.log("err: "+data+" :"); }
+                });
 
-            node.child.on('close', function (code) {
-                node.running = false;
-                node.child = null;
-                if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
-                if (node.done) {
-                    node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
-                    node.done();
-                }
-                else { node.status({fill:"red",shape:"ring",text:"rpi-gpio.status.stopped"}); }
-            });
+                node.child.on('close', function (code) {
+                    node.running = false;
+                    node.child = null;
+                    if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
+                    if (node.done) {
+                        node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
+                        node.done();
+                    }
+                    else { node.status({fill:"red",shape:"ring",text:"rpi-gpio.status.stopped"}); }
+                });
 
-            node.child.on('error', function (err) {
-                if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
-                else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
-                else { node.error(RED._("rpi-gpio.errors.error",{error:err.errno})) }
-            });
+                node.child.on('error', function (err) {
+                    if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
+                    else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
+                    else { node.error(RED._("rpi-gpio.errors.error",{error:err.errno})) }
+                });
 
+            }
+            else {
+                node.warn(RED._("rpi-gpio.errors.invalidpin")+": "+node.pin);
+            }
         }
         else {
-            node.warn(RED._("rpi-gpio.errors.invalidpin")+": "+node.pin);
+            node.status({fill:"grey",shape:"dot",text:"node-red:rpi-gpio.status.not-available"});
+            if (node.read === true) {
+                var val;
+                if (node.intype == "up") { val = 1; }
+                if (node.intype == "down") { val = 0; }
+                setTimeout(function(){
+                    node.send({ topic:"pi/"+node.pin, payload:val });
+                    node.status({fill:"grey",shape:"dot",text:RED._("rpi-gpio.status.na",{value:val})});
+                },250);
+            }
         }
 
         node.on("close", function(done) {
@@ -155,20 +170,83 @@ module.exports = function(RED) {
             else { node.warn(RED._("rpi-gpio.errors.invalidinput")+": "+out); }
         }
 
-        if (node.pin !== undefined) {
-            if (node.set && (node.out === "out")) {
-                node.child = spawn(gpioCommand, [node.out,node.pin,node.level]);
-                node.status({fill:"green",shape:"dot",text:node.level});
-            } else {
-                node.child = spawn(gpioCommand, [node.out,node.pin,node.freq]);
-                node.status({fill:"green",shape:"dot",text:"common.status.ok"});
-            }
-            node.running = true;
+        if (allOK === true) {
+            if (node.pin !== undefined) {
+                if (node.set && (node.out === "out")) {
+                    node.child = spawn(gpioCommand, [node.out,node.pin,node.level]);
+                    node.status({fill:"green",shape:"dot",text:node.level});
+                } else {
+                    node.child = spawn(gpioCommand, [node.out,node.pin,node.freq]);
+                    node.status({fill:"green",shape:"dot",text:"common.status.ok"});
+                }
+                node.running = true;
 
-            node.on("input", inputlistener);
+                node.on("input", inputlistener);
+
+                node.child.stdout.on('data', function (data) {
+                    if (RED.settings.verbose) { node.log("out: "+data+" :"); }
+                });
+
+                node.child.stderr.on('data', function (data) {
+                    if (RED.settings.verbose) { node.log("err: "+data+" :"); }
+                });
+
+                node.child.on('close', function (code) {
+                    node.child = null;
+                    node.running = false;
+                    if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
+                    if (node.done) {
+                        node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
+                        node.done();
+                    }
+                    else { node.status({fill:"red",shape:"ring",text:"rpi-gpio.status.stopped"}); }
+                });
+
+                node.child.on('error', function (err) {
+                    if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
+                    else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
+                    else { node.error(RED._("rpi-gpio.errors.error")+': ' + err.errno); }
+                });
+
+            }
+            else {
+                node.warn(RED._("rpi-gpio.errors.invalidpin")+": "+node.pin);
+            }
+        }
+        else {
+            node.status({fill:"grey",shape:"dot",text:"node-red:rpi-gpio.status.not-available"});
+            node.on("input", function(msg){
+                node.status({fill:"grey",shape:"dot",text:RED._("rpi-gpio.status.na",{value:msg.payload.toString()})});
+            });
+        }
+
+        node.on("close", function(done) {
+            node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
+            delete pinsInUse[node.pin];
+            if (node.child != null) {
+                node.done = done;
+                node.child.stdin.write("close "+node.pin);
+                node.child.kill('SIGKILL');
+            }
+            else { done(); }
+        });
+
+    }
+    RED.nodes.registerType("rpi-gpio out",GPIOOutNode);
+
+    function PiMouseNode(n) {
+        RED.nodes.createNode(this,n);
+        this.butt = n.butt || 7;
+        var node = this;
+
+        if (allOK === true) {
+            node.child = spawn(gpioCommand+".py", ["mouse",node.butt]);
+            node.status({fill:"green",shape:"dot",text:"common.status.ok"});
 
             node.child.stdout.on('data', function (data) {
-                if (RED.settings.verbose) { node.log("out: "+data+" :"); }
+                data = Number(data);
+                if (data !== 0) { node.send({ topic:"pi/mouse", button:data, payload:1 }); }
+                else { node.send({ topic:"pi/mouse", button:data, payload:0 }); }
             });
 
             node.child.stderr.on('data', function (data) {
@@ -192,69 +270,19 @@ module.exports = function(RED) {
                 else { node.error(RED._("rpi-gpio.errors.error")+': ' + err.errno); }
             });
 
+            node.on("close", function(done) {
+                node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
+                if (node.child != null) {
+                    node.done = done;
+                    node.child.kill('SIGINT');
+                    node.child = null;
+                }
+                else { done(); }
+            });
         }
         else {
-            node.warn(RED._("rpi-gpio.errors.invalidpin")+": "+node.pin);
+            node.status({fill:"grey",shape:"dot",text:"node-red:rpi-gpio.status.not-available"});
         }
-
-        node.on("close", function(done) {
-            node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
-            delete pinsInUse[node.pin];
-            if (node.child != null) {
-                node.done = done;
-                node.child.stdin.write("close "+node.pin);
-                node.child.kill('SIGKILL');
-            }
-            else { done(); }
-        });
-
-    }
-    RED.nodes.registerType("rpi-gpio out",GPIOOutNode);
-
-    function PiMouseNode(n) {
-        RED.nodes.createNode(this,n);
-        this.butt = n.butt || 7;
-        var node = this;
-
-        node.child = spawn(gpioCommand+".py", ["mouse",node.butt]);
-        node.status({fill:"green",shape:"dot",text:"common.status.ok"});
-
-        node.child.stdout.on('data', function (data) {
-            data = Number(data);
-            if (data === 1) { node.send({ topic:"pi/mouse", button:data, payload:1 }); }
-            else { node.send({ topic:"pi/mouse", button:data, payload:0 }); }
-        });
-
-        node.child.stderr.on('data', function (data) {
-            if (RED.settings.verbose) { node.log("err: "+data+" :"); }
-        });
-
-        node.child.on('close', function (code) {
-            node.child = null;
-            node.running = false;
-            if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
-            if (node.done) {
-                node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
-                node.done();
-            }
-            else { node.status({fill:"red",shape:"ring",text:"rpi-gpio.status.stopped"}); }
-        });
-
-        node.child.on('error', function (err) {
-            if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
-            else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
-            else { node.error(RED._("rpi-gpio.errors.error")+': ' + err.errno); }
-        });
-
-        node.on("close", function(done) {
-            node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
-            if (node.child != null) {
-                node.done = done;
-                node.child.kill('SIGINT');
-                node.child = null;
-            }
-            else { done(); }
-        });
     }
     RED.nodes.registerType("rpi-mouse",PiMouseNode);
 
@@ -262,39 +290,40 @@ module.exports = function(RED) {
         RED.nodes.createNode(this,n);
         var node = this;
 
-        node.child = spawn(gpioCommand+".py", ["kbd","0"]);
-        node.status({fill:"green",shape:"dot",text:"common.status.ok"});
+        if (allOK === true) {
+            node.child = spawn(gpioCommand+".py", ["kbd","0"]);
+            node.status({fill:"green",shape:"dot",text:"common.status.ok"});
 
-        node.child.stdout.on('data', function (data) {
-            var b = data.toString().trim().split(",");
-            var act = "up";
-            if (b[1] === "1") { act = "down"; }
-            if (b[1] === "2") { act = "repeat"; }
-            node.send({ topic:"pi/key", payload:Number(b[0]), action:act });
-        });
+            node.child.stdout.on('data', function (data) {
+                var b = data.toString().trim().split(",");
+                var act = "up";
+                if (b[1] === "1") { act = "down"; }
+                if (b[1] === "2") { act = "repeat"; }
+                node.send({ topic:"pi/key", payload:Number(b[0]), action:act });
+            });
 
-        node.child.stderr.on('data', function (data) {
-            if (RED.settings.verbose) { node.log("err: "+data+" :"); }
-        });
+            node.child.stderr.on('data', function (data) {
+                if (RED.settings.verbose) { node.log("err: "+data+" :"); }
+            });
 
-        node.child.on('close', function (code) {
-            node.running = false;
-            node.child = null;
-            if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
-            if (node.done) {
-                node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
-                node.done();
-            }
-            else { node.status({fill:"red",shape:"ring",text:"rpi-gpio.status.stopped"}); }
-        });
+            node.child.on('close', function (code) {
+                node.running = false;
+                node.child = null;
+                if (RED.settings.verbose) { node.log(RED._("rpi-gpio.status.closed")); }
+                if (node.done) {
+                    node.status({fill:"grey",shape:"ring",text:"rpi-gpio.status.closed"});
+                    node.done();
+                }
+                else { node.status({fill:"red",shape:"ring",text:"rpi-gpio.status.stopped"}); }
+            });
 
-        node.child.on('error', function (err) {
-            if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
-            else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
-            else { node.error(RED._("rpi-gpio.errors.error")+': ' + err.errno); }
-        });
+            node.child.on('error', function (err) {
+                if (err.errno === "ENOENT") { node.error(RED._("rpi-gpio.errors.commandnotfound")); }
+                else if (err.errno === "EACCES") { node.error(RED._("rpi-gpio.errors.commandnotexecutable")); }
+                else { node.error(RED._("rpi-gpio.errors.error")+': ' + err.errno); }
+            });
 
-        node.on("close", function(done) {
+            node.on("close", function(done) {
             node.status({});
             if (node.child != null) {
                 node.done = done;
@@ -303,24 +332,30 @@ module.exports = function(RED) {
             }
             else { done(); }
         });
+        }
+        else {
+            node.status({fill:"grey",shape:"dot",text:"node-red:rpi-gpio.status.not-available"});
+        }
     }
     RED.nodes.registerType("rpi-keyboard",PiKeyboardNode);
 
     var pitype = { type:"" };
-    exec(gpioCommand+" info", function(err,stdout,stderr) {
-        if (err) {
-            RED.log.info(RED._("rpi-gpio.errors.version"));
-        }
-        else {
-            try {
-                var info = JSON.parse( stdout.trim().replace(/\'/g,"\"") );
-                pitype.type = info["TYPE"];
+    if (allOK === true) {
+        exec(gpioCommand+" info", function(err,stdout,stderr) {
+            if (err) {
+                RED.log.info(RED._("rpi-gpio.errors.version"));
             }
-            catch(e) {
-                RED.log.info(RED._("rpi-gpio.errors.sawpitype"),stdout.trim());
+            else {
+                try {
+                    var info = JSON.parse( stdout.trim().replace(/\'/g,"\"") );
+                    pitype.type = info["TYPE"];
+                }
+                catch(e) {
+                    RED.log.info(RED._("rpi-gpio.errors.sawpitype"),stdout.trim());
+                }
             }
-        }
-    });
+        });
+    }
 
     RED.httpAdmin.get('/rpi-gpio/:id', RED.auth.needsPermission('rpi-gpio.read'), function(req,res) {
         res.json(pitype);
diff --git a/nodes/core/locales/en-US/messages.json b/nodes/core/locales/en-US/messages.json
index 74ec0bcd4..d59f3d1bf 100644
--- a/nodes/core/locales/en-US/messages.json
+++ b/nodes/core/locales/en-US/messages.json
@@ -786,8 +786,8 @@
             "na": "N/A : __value__"
         },
         "errors": {
-            "ignorenode": "Ignoring Raspberry Pi specific node",
-            "version": "Version command failed",
+            "ignorenode": "Raspberry Pi specific node set inactive",
+            "version": "Failed to get version from Pi",
             "sawpitype": "Saw Pi Type",
             "libnotfound": "Cannot find Pi RPi.GPIO python library",
             "alreadyset": "GPIO pin __pin__ already set as type: __type__",
diff --git a/nodes/core/storage/50-file.html b/nodes/core/storage/50-file.html
index cdb001eb6..eabf56a76 100644
--- a/nodes/core/storage/50-file.html
+++ b/nodes/core/storage/50-file.html
@@ -123,9 +123,8 @@
         },
         color:"BurlyWood",
         inputs:1,
-        outputs:0,
-        icon: "file.png",
-        align: "right",
+        outputs:1,
+        icon: "file-out.png",
         label: function() {
             if (this.overwriteFile === "delete") {
                 return this.name||this._("file.label.deletelabel",{file:this.filename});
@@ -159,7 +158,7 @@
         outputLabels: function(i) {
             return (this.format === "utf8") ? "UTF8 string" : "binary buffer";
         },
-        icon: "file.png",
+        icon: "file-in.png",
         label: function() {
             return this.name||this.filename||this._("file.label.filelabel");
         },
diff --git a/nodes/core/storage/50-file.js b/nodes/core/storage/50-file.js
index a0e49f6fc..76cedb136 100644
--- a/nodes/core/storage/50-file.js
+++ b/nodes/core/storage/50-file.js
@@ -39,14 +39,20 @@ module.exports = function(RED) {
                     node.tout = null;
                 },333);
             }
-            if (filename === "") { node.warn(RED._("file.errors.nofilename")); }
-            else if (node.overwriteFile === "delete") {
+            if (filename === "") {
+                node.warn(RED._("file.errors.nofilename"));
+            } else if (node.overwriteFile === "delete") {
                 fs.unlink(filename, function (err) {
-                    if (err) { node.error(RED._("file.errors.deletefail",{error:err.toString()}),msg); }
-                    else if (RED.settings.verbose) { node.log(RED._("file.status.deletedfile",{file:filename})); }
+                    if (err) {
+                        node.error(RED._("file.errors.deletefail",{error:err.toString()}),msg);
+                    } else {
+                        if (RED.settings.verbose) {
+                            node.log(RED._("file.status.deletedfile",{file:filename}));
+                        }
+                        node.send(msg);
+                    }
                 });
-            }
-            else if (msg.hasOwnProperty("payload") && (typeof msg.payload !== "undefined")) {
+            } else if (msg.hasOwnProperty("payload") && (typeof msg.payload !== "undefined")) {
                 var dir = path.dirname(filename);
                 if (node.createDir) {
                     try {
@@ -64,15 +70,21 @@ module.exports = function(RED) {
                 if (typeof data === "boolean") { data = data.toString(); }
                 if (typeof data === "number") { data = data.toString(); }
                 if ((node.appendNewline) && (!Buffer.isBuffer(data))) { data += os.EOL; }
-                node.data.push(Buffer.from(data));
+                node.data.push({msg:msg,data:Buffer.from(data)});
 
                 while (node.data.length > 0) {
                     if (node.overwriteFile === "true") {
-                        node.wstream = fs.createWriteStream(filename, { encoding:'binary', flags:'w', autoClose:true });
-                        node.wstream.on("error", function(err) {
-                            node.error(RED._("file.errors.writefail",{error:err.toString()}),msg);
-                        });
-                        node.wstream.end(node.data.shift());
+                        (function(packet) {
+                            node.wstream = fs.createWriteStream(filename, { encoding:'binary', flags:'w', autoClose:true });
+                            node.wstream.on("error", function(err) {
+                                node.error(RED._("file.errors.writefail",{error:err.toString()}),msg);
+                            });
+                            node.wstream.on("open", function() {
+                                node.wstream.end(packet.data, function() {
+                                    node.send(packet.msg);
+                                });
+                            })
+                        })(node.data.shift());
                     }
                     else {
                         // Append mode
@@ -115,10 +127,17 @@ module.exports = function(RED) {
                         }
                         if (node.filename) {
                             // Static filename - write and reuse the stream next time
-                            node.wstream.write(node.data.shift());
+                            var packet = node.data.shift()
+                            node.wstream.write(packet.data, function() {
+                                node.send(packet.msg);
+                            });
+
                         } else {
                             // Dynamic filename - write and close the stream
-                            node.wstream.end(node.data.shift());
+                            var packet = node.data.shift()
+                            node.wstream.end(packet.data, function() {
+                                node.send(packet.msg);
+                            });
                             delete node.wstream;
                             delete node.wstreamIno;
                         }
diff --git a/red/api/editor/locales/en-US/editor.json b/red/api/editor/locales/en-US/editor.json
index b2285f566..65681850f 100644
--- a/red/api/editor/locales/en-US/editor.json
+++ b/red/api/editor/locales/en-US/editor.json
@@ -240,6 +240,7 @@
         "output": "outputs:",
         "deleteSubflow": "delete subflow",
         "info": "Description",
+        "category": "Category",
         "format":"markdown format",
         "errors": {
             "noNodesSelected": "<strong>Cannot create subflow</strong>: no nodes selected",
@@ -318,6 +319,7 @@
         "noInfo": "no information available",
         "filter": "filter nodes",
         "search": "search modules",
+        "addCategory": "Add new...",
         "label": {
             "subflows": "subflows",
             "input": "input",
@@ -467,8 +469,47 @@
             "description": "Description",
             "dependencies": "Dependencies",
             "settings": "Settings",
+            "noSummaryAvailable": "No summary available",
             "editDescription": "Edit project description",
             "editDependencies": "Edit project dependencies",
+            "editReadme": "Edit README.md",
+            "projectSettings": {
+                "edit": "edit",
+                "none": "None",
+                "install": "install",
+                "removeFromProject": "remove from project",
+                "addToProject": "add to project",
+                "none": "None",
+                "files": "Files",
+                "flow": "Flow",
+                "credentials": "Credentials",
+                "invalidEncryptionKey": "Invalid encryption key",
+                "encryptionEnabled": "Encryption enabled",
+                "encryptionDisabled": "Encryption disabled",
+                "resetTheEncryptionKey": "Reset the encryption key:",
+                "setTheEncryptionKey": "Set the encryption key:",
+                "changeTheEncryptionKey": "Change the encryption key:",
+                "currentKey": "Current key",
+                "newKey": "New key",
+                "credentialsAlert": "This will delete all existing credentials",
+                "versionControl": "Version Control",
+                "branches": "Branches",
+                "noBranches": "No branches",
+                "deleteConfirm": "Are you sure you want to delete the local branch '__name__'? This cannot be undone.",
+                "unmergedConfirm": "The local branch '__name__' has unmerged changes that will be lost. Are you sure you want to delete it?",
+                "deleteUnmergedBranch": "Delete unmerged branch",
+                "gitRemotes": "Git remotes",
+                "addRemote": "add remote",
+                "addRemote2": "Add remote",
+                "remoteName": "Remote name",
+                "nameRule": "Must contain only A-Z 0-9 _ -",
+                "url": "URL",
+                "urlRule": "https://, ssh:// or file://",
+                "urlRule2": "Do not include the username/password in the URL",
+                "noRemotes": "No remotes",
+                "deleteRemoteConfrim": "Are you sure you want to delete the remote '__name__'?",
+                "deleteRemote": "Delete remote"
+            },
             "userSettings": {
                 "committerDetail": "Committer Details",
                 "committerTip": "Leave blank to use system default",
diff --git a/red/api/editor/locales/ja/editor.json b/red/api/editor/locales/ja/editor.json
index d24dcc711..d18938123 100644
--- a/red/api/editor/locales/ja/editor.json
+++ b/red/api/editor/locales/ja/editor.json
@@ -459,8 +459,46 @@
             "description": "詳細",
             "dependencies": "依存関係",
             "settings": "設定",
+            "noSummaryAvailable": "サマリが存在しません",
             "editDescription": "プロジェクトの詳細を編集",
             "editDependencies": "プロジェクトの依存関係を編集",
+            "editReadme": "README.mdを編集",
+            "projectSettings": {
+                "edit": "編集",
+                "none": "なし",
+                "install": "インストール",
+                "removeFromProject": "プロジェクトから削除",
+                "addToProject": "プロジェクトへ追加",
+                "files": "ファイル",
+                "flow": "フロー",
+                "credentials": "認証情報",
+                "invalidEncryptionKey": "不正な暗号化キー",
+                "encryptionEnabled": "暗号化が有効になっています",
+                "encryptionDisabled": "暗号化が無効になっています",
+                "setTheEncryptionKey": "暗号化キーを設定:",
+                "resetTheEncryptionKey": "暗号化キーを初期化:",
+                "changeTheEncryptionKey": "暗号化キーを変更:",
+                "currentKey": "現在のキー",
+                "newKey": "新規のキー",
+                "credentialsAlert": "既存の認証情報は全て削除されます",
+                "versionControl": "バージョン管理",
+                "branches": "ブランチ",
+                "noBranches": "ブランチなし",
+                "deleteConfirm": "本当にローカルブランチ'__name__'を削除しますか？削除すると元に戻すことはできません。",
+                "unmergedConfirm": "ローカルブランチ'__name__'にはマージされていない変更があります。この変更は削除されます。本当に削除しますか？",
+                "deleteUnmergedBranch": "マージされていないブランチを削除",
+                "gitRemotes": "Gitリモート",
+                "addRemote": "リモートを追加",
+                "addRemote2": "リモートを追加",
+                "remoteName": "リモート名",
+                "nameRule": "A-Z 0-9 _ - のみを含む",
+                "url": "URL",
+                "urlRule": "https://、ssh:// または file://",
+                "urlRule2": "URLにユーザ名、パスワードを含んではいけません",
+                "noRemotes": "リモートなし",
+                "deleteRemoteConfrim": "本当にリモート'__name__'を削除しますか？",
+                "deleteRemote": "リモートを削除"
+            },
             "userSettings": {
                 "committerDetail": "コミッター詳細",
                 "committerTip": "システムのデフォルトを使用する場合、空白のままにしてください",
diff --git a/red/runtime/storage/index.js b/red/runtime/storage/index.js
index e0ef6d6b6..a2593eff1 100644
--- a/red/runtime/storage/index.js
+++ b/red/runtime/storage/index.js
@@ -25,6 +25,8 @@ var storageModule;
 var settingsAvailable;
 var sessionsAvailable;
 
+var libraryFlowsCachedResult = null;
+
 function moduleSelector(aSettings) {
     var toReturn;
     if (aSettings.storageModule) {
@@ -156,7 +158,14 @@ var storageModuleInterface = {
             if (storageModule.hasOwnProperty("getAllFlows")) {
                 return storageModule.getAllFlows();
             } else {
-                return listFlows("/");
+                if (libraryFlowsCachedResult) {
+                    return Promise.resolve(libraryFlowsCachedResult);
+                } else {
+                    return listFlows("/").then(function(result) {
+                        libraryFlowsCachedResult = result;
+                        return result;
+                    });
+                }
             }
         },
         getFlow: function(fn) {
@@ -178,6 +187,7 @@ var storageModuleInterface = {
                 err.code = "forbidden";
                 return when.reject(err);
             }
+            libraryFlowsCachedResult = null;
             if (storageModule.hasOwnProperty("saveFlow")) {
                 return storageModule.saveFlow(fn, data);
             } else {
diff --git a/test/nodes/core/hardware/36-rpi-gpio_spec.js b/test/nodes/core/hardware/36-rpi-gpio_spec.js
new file mode 100644
index 000000000..c11ea254c
--- /dev/null
+++ b/test/nodes/core/hardware/36-rpi-gpio_spec.js
@@ -0,0 +1,89 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var should = require("should");
+var rpi = require("../../../../nodes/core/hardware/36-rpi-gpio.js");
+var helper = require("node-red-node-test-helper");
+var fs = require("fs");
+
+describe('RPI GPIO Node', function() {
+
+    before(function(done) {
+        helper.startServer(done);
+    });
+
+    after(function(done) {
+        helper.stopServer(done);
+    });
+
+    afterEach(function() {
+        helper.unload();
+    });
+
+    var checkIgnore = function(done) {
+        setTimeout(function() {
+            try {
+                var logEvents = helper.log().args.filter(function(evt) {
+                    return ((evt[0].level == 30) && (evt[0].msg.indexOf("rpi-gpio")===0));
+                });
+                logEvents[0][0].should.have.a.property('msg');
+                logEvents[0][0].msg.toString().should.startWith("rpi-gpio : rpi-gpio.errors.ignorenode");
+                done();
+            } catch(err) {
+                done(err);
+            }
+        },25);
+    }
+
+    it('should load Input node', function(done) {
+        var flow = [{id:"n1", type:"rpi-gpio in", name:"rpi-gpio in" }];
+        helper.load(rpi, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.should.have.property('name', 'rpi-gpio in');
+            try {
+                var cpuinfo = fs.readFileSync("/proc/cpuinfo").toString();
+                if (cpuinfo.indexOf(": BCM") === 1) {
+                    done(); // It's ON a PI ... should really do more tests !
+                } else {
+                    checkIgnore(done);
+                }
+            }
+            catch(e) {
+                checkIgnore(done);
+            }
+        });
+    });
+
+    it('should load Output node', function(done) {
+        var flow = [{id:"n1", type:"rpi-gpio out", name:"rpi-gpio out" }];
+        helper.load(rpi, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.should.have.property('name', 'rpi-gpio out');
+            try {
+                var cpuinfo = fs.readFileSync("/proc/cpuinfo").toString();
+                if (cpuinfo.indexOf(": BCM") === 1) {
+                    done(); // It's ON a PI ... should really do more tests !
+                } else {
+                    checkIgnore(done);
+                }
+            }
+            catch(e) {
+                checkIgnore(done);
+            }
+        });
+    });
+
+});