diff --git a/Gruntfile.js b/Gruntfile.js
index 2f81da923..4f4b3b027 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -169,6 +169,7 @@ module.exports = function(grunt) {
                     "packages/node_modules/@node-red/editor-client/src/js/ui/diagnostics.js",
                     "packages/node_modules/@node-red/editor-client/src/js/ui/diff.js",
                     "packages/node_modules/@node-red/editor-client/src/js/ui/keyboard.js",
+                    "packages/node_modules/@node-red/editor-client/src/js/ui/env-var.js",
                     "packages/node_modules/@node-red/editor-client/src/js/ui/workspaces.js",
                     "packages/node_modules/@node-red/editor-client/src/js/ui/statusBar.js",
                     "packages/node_modules/@node-red/editor-client/src/js/ui/view.js",
diff --git a/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json b/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json
index 1cc571200..fe5120302 100755
--- a/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json
+++ b/packages/node_modules/@node-red/editor-client/locales/en-US/editor.json
@@ -1204,5 +1204,10 @@
         "node": "Node",
         "junction": "Junction",
         "linkNodes": "Link Nodes"
+    },
+    "env-var": {
+        "environment": "Environment",
+        "header": "Global Environment Variables",
+	"revert": "Revert"
     }
 }
diff --git a/packages/node_modules/@node-red/editor-client/locales/ja/editor.json b/packages/node_modules/@node-red/editor-client/locales/ja/editor.json
index fb3458eed..2b438050e 100644
--- a/packages/node_modules/@node-red/editor-client/locales/ja/editor.json
+++ b/packages/node_modules/@node-red/editor-client/locales/ja/editor.json
@@ -1349,5 +1349,10 @@
         "show-version-control-tab": "バージョンコントロールタブを表示",
         "start-flows": "フローを開始",
         "stop-flows": "フローを停止"
+    },
+    "env-var": {
+        "environment": "環境変数",
+        "header": "大域環境変数",
+	"revert": "破棄"
     }
 }
diff --git a/packages/node_modules/@node-red/editor-client/src/js/red.js b/packages/node_modules/@node-red/editor-client/src/js/red.js
index 129c46799..6c0adf21b 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/red.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/red.js
@@ -775,6 +775,7 @@ var RED = (function() {
         RED.deploy.init(RED.settings.theme("deployButton",null));
 
         RED.keyboard.init(buildMainMenu);
+        RED.envVar.init();
 
         RED.nodes.init();
         RED.runtime.init()
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/deploy.js b/packages/node_modules/@node-red/editor-client/src/js/ui/deploy.js
index 8a8df6837..254ade55f 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/deploy.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/deploy.js
@@ -421,7 +421,7 @@ RED.deploy = (function() {
 
             const unusedConfigNodes = [];
             RED.nodes.eachConfig(function (node) {
-                if ((node._def.hasUsers !== false) && (node.users.length === 0)) {
+                if ((node._def.hasUsers !== false) && (node.users.length === 0) && (node.type !== "global-config")) {
                     unusedConfigNodes.push(getNodeInfo(node));
                     hasUnusedConfig = true;
                 }
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/env-var.js b/packages/node_modules/@node-red/editor-client/src/js/ui/env-var.js
new file mode 100644
index 000000000..a8f852307
--- /dev/null
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/env-var.js
@@ -0,0 +1,190 @@
+/**
+ * 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.
+ **/
+
+RED.envVar = (function() {
+    function saveEnvList(list) {
+        const items = list.editableList("items")
+        const new_env = [];
+        items.each(function (i,el) {
+            var data = el.data('data');
+            var item;
+            if (data.nameField && data.valueField) {
+                item = {
+                    name: data.nameField.val(),
+                    value: data.valueField.typedInput("value"),
+                    type: data.valueField.typedInput("type")
+                };
+                new_env.push(item);
+            }
+        });
+        return new_env;
+    }
+
+    function getGlobalConf(create) {
+        var gconf = null;
+        RED.nodes.eachConfig(function (conf) {
+            if (conf.type === "global-config") {
+                gconf = conf;
+            }
+        });
+        if ((gconf === null) && create) {
+            var cred = {
+                _ : {},
+                map: {}
+            };
+            gconf = {
+                id: RED.nodes.id(),
+                type: "global-config",
+                env: [],
+                name: "global-config",
+                label: "",
+                hasUsers: false,
+                users: [],
+                credentials: cred,
+                _def: RED.nodes.getType("global-config"),
+            };
+            RED.nodes.add(gconf);
+        }
+        return gconf;
+    }
+
+    function applyChanges(list) {
+        var gconf = getGlobalConf(false);
+        var new_env = [];
+        var items = list.editableList('items');
+        var credentials = gconf ? gconf.credentials : null;
+
+        if (!credentials) {
+            credentials = {
+                _ : {},
+                map: {}
+            };
+        }
+        items.each(function (i,el) {
+            var data = el.data('data');
+            if (data.nameField && data.valueField) {
+                var item = {
+                    name: data.nameField.val(),
+                    value: data.valueField.typedInput("value"),
+                    type: data.valueField.typedInput("type")
+                };
+                if (item.name.trim() !== "") {
+                    new_env.push(item);
+                    if ((item.type === "cred") && (item.value !== "__PWRD__")) {
+                        credentials.map[item.name] = item.value;
+                        credentials.map["has_"+item.name] = (item.value !== "");
+                        item.value = "__PWRD__";
+                    }
+                }
+            }
+        });
+        if (gconf === null) {
+            gconf = getGlobalConf(true);
+        }
+        if ((JSON.stringify(new_env) !== JSON.stringify(gconf.env)) ||
+            (JSON.stringify(credentials) !== JSON.stringify(gconf.credentials))) {
+            gconf.env = new_env;
+            gconf.credentials = credentials;
+            RED.nodes.dirty(true);
+        }
+    }
+
+    function getSettingsPane() {
+        var gconf = getGlobalConf(false);
+        var env = gconf ? gconf.env : [];
+        var cred = gconf ? gconf.credentials : null;
+        if (!cred) {
+            cred = {
+                _ : {},
+                map: {}
+            };
+        }
+
+        var pane = $("<div/>", {
+            id: "red-ui-settings-tab-envvar"
+        });
+        var content = $("<div/>", {
+            class: "form-row node-input-env-container-row"
+        }).css({
+            "margin": "10px"
+        }).appendTo(pane);
+
+        var label = $("<label></label>").css({
+            width: "100%"
+        }).appendTo(content);
+        $("<i/>", {
+            class: "fa fa-list"
+        }).appendTo(label);
+        $("<span/>").text(" "+RED._("env-var.header")).appendTo(label);
+
+        var list = $("<ol/>", {
+            id: "node-input-env-container"
+        }).appendTo(content);
+        var node = {
+            type: "",
+            env: env,
+            credentials: cred.map,
+        };
+        RED.editor.envVarList.create(list, node);
+
+        var buttons = $("<div/>").css({
+            "text-align": "right",
+        }).appendTo(content);
+        var revertButton = $("<button/>", {
+            class: "red-ui-button"
+        }).css({
+        }).text(RED._("env-var.revert")).appendTo(buttons);
+
+        var items = saveEnvList(list);
+        revertButton.on("click", function (ev) {
+            list.editableList("empty");
+            list.editableList("addItems", items);
+        });
+
+        return pane;
+    }
+
+    function init(done) {
+        if (!RED.user.hasPermission("settings.write")) {
+            RED.notify(RED._("user.errors.settings"),"error");
+            return;
+        }
+        RED.userSettings.add({
+            id:'envvar',
+            title: RED._("env-var.environment"),
+            get: getSettingsPane,
+            focus: function() {
+                var height = $("#red-ui-settings-tab-envvar").parent().height();
+                $("#node-input-env-container").editableList("height", (height -100));
+            },
+            close: function() {
+                var list = $("#node-input-env-container");
+                try {
+                    applyChanges(list);
+                }
+                catch (e) {
+                    console.log(e);
+                    console.log(e.stack);
+                }
+            }
+        });
+    }
+
+    return {
+        init: init,
+    };
+
+})();
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
index c6c49c942..99855b6c9 100755
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
@@ -5603,7 +5603,24 @@ RED.view = (function() {
             if (activeSubflow) {
                 activeSubflowChanged = activeSubflow.changed;
             }
-            var result = RED.nodes.import(nodesToImport,{generateIds:options.generateIds, addFlow: addNewFlow, importMap: options.importMap});
+            var filteredNodesToImport = nodesToImport;
+            var globalConfig = null;
+            var gconf = null;
+
+            RED.nodes.eachConfig(function (conf) {
+                if (conf.type === "global-config") {
+                    gconf = conf;
+                }
+            });
+            if (gconf) {
+                filteredNodesToImport = nodesToImport.filter(function (n) {
+                    return (n.type !== "global-config");
+                });
+                globalConfig = nodesToImport.find(function (n) {
+                    return (n.type === "global-config");
+                });
+            }
+            var result = RED.nodes.import(filteredNodesToImport,{generateIds:options.generateIds, addFlow: addNewFlow, importMap: options.importMap});
             if (result) {
                 var new_nodes = result.nodes;
                 var new_links = result.links;
@@ -5735,6 +5752,50 @@ RED.view = (function() {
                     }
                 }
 
+                if (globalConfig) {
+                    // merge global env to existing global-config
+                    var env0 = gconf.env;
+                    var env1 = globalConfig.env;
+                    var newEnv = Array.from(env0);
+                    var changed = false;
+
+                    env1.forEach(function (item1) {
+                        var index = newEnv.findIndex(function (item0) {
+                            return (item0.name === item1.name);
+                        });
+                        if (index >= 0) {
+                            var item0 = newEnv[index];
+                            if ((item0.type !== item1.type) ||
+                                (item0.value !== item1.value)) {
+                                newEnv[index] = item1;
+                                changed = true;
+                            }
+                        }
+                        else {
+                            newEnv.push(item1);
+                            changed = true;
+                        }
+                    });
+                    if(changed) {
+                        gconf.env = newEnv;
+                        var replaceEvent = {
+                            t: "edit",
+                            node: gconf,
+                            changed: true,
+                            changes: {
+                                env: env0
+                            }
+                        };
+                        historyEvent = {
+                            t:"multi",
+                            events: [
+                                replaceEvent,
+                                historyEvent,
+                            ]
+                        };
+                    }
+                }
+
                 RED.history.push(historyEvent);
 
                 updateActiveNodes();
diff --git a/packages/node_modules/@node-red/nodes/core/common/91-global-config.html b/packages/node_modules/@node-red/nodes/core/common/91-global-config.html
new file mode 100644
index 000000000..8ef9cc4a7
--- /dev/null
+++ b/packages/node_modules/@node-red/nodes/core/common/91-global-config.html
@@ -0,0 +1,19 @@
+
+<script type="text/html" data-template-name="global-config">
+    <div cllass="form-tips">
+        <span data-i18n="[html]global-config.tip"></span>
+    </div>
+</script>
+
+<script type="text/javascript">
+    RED.nodes.registerType('global-config',{
+        category: 'config',
+        defaults: {
+            name: { value: "" },
+            env: { value: [] },
+        },
+        credentials: {
+            map: { type: "map" }
+        }
+    });
+</script>
diff --git a/packages/node_modules/@node-red/nodes/core/common/91-global-config.js b/packages/node_modules/@node-red/nodes/core/common/91-global-config.js
new file mode 100644
index 000000000..08aa23207
--- /dev/null
+++ b/packages/node_modules/@node-red/nodes/core/common/91-global-config.js
@@ -0,0 +1,7 @@
+module.exports = function(RED) {
+    "use strict";
+    function GlobalConfigNode(n) {
+        RED.nodes.createNode(this,n);
+    }
+    RED.nodes.registerType("global-config", GlobalConfigNode);
+}
diff --git a/packages/node_modules/@node-red/nodes/locales/en-US/common/91-global-config.html b/packages/node_modules/@node-red/nodes/locales/en-US/common/91-global-config.html
new file mode 100644
index 000000000..397bdcb8a
--- /dev/null
+++ b/packages/node_modules/@node-red/nodes/locales/en-US/common/91-global-config.html
@@ -0,0 +1,19 @@
+<!--
+  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.
+-->
+
+<script type="text/html" data-help-name="global-config">
+    <p>A node for holding global configuration of flows.</p>
+</script>
diff --git a/packages/node_modules/@node-red/nodes/locales/en-US/messages.json b/packages/node_modules/@node-red/nodes/locales/en-US/messages.json
index 62d5f351f..ad7c5567b 100644
--- a/packages/node_modules/@node-red/nodes/locales/en-US/messages.json
+++ b/packages/node_modules/@node-red/nodes/locales/en-US/messages.json
@@ -1123,5 +1123,8 @@
         "warn": {
             "nonumber": "no number found in payload"
         }
+    },
+    "global-config": {
+      "tip": "<p>This node holds global configuration of flows.</p><p>Do not delete this node unless you understand underlying mechanism.</p>"
     }
 }
diff --git a/packages/node_modules/@node-red/nodes/locales/ja/common/91-global-config.html b/packages/node_modules/@node-red/nodes/locales/ja/common/91-global-config.html
new file mode 100644
index 000000000..6d0602f86
--- /dev/null
+++ b/packages/node_modules/@node-red/nodes/locales/ja/common/91-global-config.html
@@ -0,0 +1,19 @@
+<!--
+  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.
+-->
+
+<script type="text/html" data-help-name="global-config">
+    <p>大域的なフローの設定を保持するノード。</p>
+</script>p
diff --git a/packages/node_modules/@node-red/nodes/locales/ja/messages.json b/packages/node_modules/@node-red/nodes/locales/ja/messages.json
index 6e16daa6f..c5773972d 100644
--- a/packages/node_modules/@node-red/nodes/locales/ja/messages.json
+++ b/packages/node_modules/@node-red/nodes/locales/ja/messages.json
@@ -1123,5 +1123,8 @@
         "warn": {
             "nonumber": "ペイロードに数値が含まれていません"
         }
+    },
+    "global-config": {
+      "tip": "<p>このノードはフローの大域的な設定を保持するために利用されます。</p><p>実装の詳細を理解していない場合、このノードの削除は推奨しません。</p>"
     }
 }
diff --git a/packages/node_modules/@node-red/runtime/lib/flows/index.js b/packages/node_modules/@node-red/runtime/lib/flows/index.js
index 1b5476a3f..a583540f1 100644
--- a/packages/node_modules/@node-red/runtime/lib/flows/index.js
+++ b/packages/node_modules/@node-red/runtime/lib/flows/index.js
@@ -777,6 +777,16 @@ const flowAPI = {
 }
 
 
+function getGlobalConfig() {
+    let gconf = null;
+    eachNode((n) => {
+        if (n.type === "global-config") {
+            gconf = n;
+        }
+    });
+    return gconf;
+}
+
 module.exports = {
     init: init,
 
@@ -790,6 +800,9 @@ module.exports = {
     get:getNode,
     eachNode: eachNode,
 
+
+    getGlobalConfig: getGlobalConfig,
+    
     /**
      * Gets the current flow configuration
      */
diff --git a/packages/node_modules/@node-red/runtime/lib/flows/util.js b/packages/node_modules/@node-red/runtime/lib/flows/util.js
index 0f3435b77..e350cc28c 100644
--- a/packages/node_modules/@node-red/runtime/lib/flows/util.js
+++ b/packages/node_modules/@node-red/runtime/lib/flows/util.js
@@ -18,7 +18,9 @@ var redUtil = require("@node-red/util").util;
 var Log = require("@node-red/util").log;
 var subflowInstanceRE = /^subflow:(.+)$/;
 var typeRegistry = require("@node-red/registry");
+const credentials = require("../nodes/credentials");
 
+let _runtime = null;
 
 var envVarExcludes = {};
 
@@ -263,15 +265,55 @@ function parseConfig(config) {
    return flow;
 }
 
+function getGlobalEnv(name) {
+    const nodes = _runtime.nodes;
+    if (!nodes) {
+        return null;
+    }
+    const gconf = nodes.getGlobalConfig();
+    const env = gconf ? gconf.env : null;
+
+    if (env) {
+        const cred = (gconf ? credentials.get(gconf.id) : null) || {
+            map: {}
+        };
+        const map = cred.map;
+
+        for (let i = 0; i < env.length; i++) {
+            const item = env[i];
+            if (item.name === name) {
+                if (item.type === "cred") {
+                    return {
+                        name: name,
+                        value: map[name],
+                        type: "cred"
+                    };
+                }
+                return item;
+            }
+        }
+    }
+    return null;
+}
+
 module.exports = {
     init: function(runtime) {
+        _runtime = runtime;
         envVarExcludes = {};
         if (runtime.settings.hasOwnProperty('envVarExcludes') && Array.isArray(runtime.settings.envVarExcludes)) {
             runtime.settings.envVarExcludes.forEach(v => envVarExcludes[v] = true);
         }
     },
     getEnvVar: function(k) {
-        return !envVarExcludes[k]?process.env[k]:undefined
+        if (!envVarExcludes[k]) {
+            const item = getGlobalEnv(k);
+            if (item) {
+                const val = redUtil.evaluateNodeProperty(item.value, item.type, null, null, null);
+                return val;
+            }
+            return process.env[k];
+        }
+        return undefined;
     },
     diffNodes: diffNodes,
     mapEnvVarProperties: mapEnvVarProperties,
diff --git a/packages/node_modules/@node-red/runtime/lib/nodes/credentials.js b/packages/node_modules/@node-red/runtime/lib/nodes/credentials.js
index 305594c85..73567f7c4 100644
--- a/packages/node_modules/@node-red/runtime/lib/nodes/credentials.js
+++ b/packages/node_modules/@node-red/runtime/lib/nodes/credentials.js
@@ -383,6 +383,11 @@ var api = module.exports = {
                         }
                     }
                 }
+            } else if (nodeType === "global-config") {
+                if (JSON.stringify(savedCredentials.map) !== JSON.stringify(newCreds.map)) {
+                    savedCredentials.map = newCreds.map;
+                    dirty = true;
+                }
             } else {
                 var dashedType = nodeType.replace(/\s+/g, '-');
                 var definition = credentialsDef[dashedType];
diff --git a/packages/node_modules/@node-red/runtime/lib/nodes/index.js b/packages/node_modules/@node-red/runtime/lib/nodes/index.js
index 5b859a5f8..fd01ebdb0 100644
--- a/packages/node_modules/@node-red/runtime/lib/nodes/index.js
+++ b/packages/node_modules/@node-red/runtime/lib/nodes/index.js
@@ -205,6 +205,7 @@ module.exports = {
     getNode: flows.get,
     eachNode: flows.eachNode,
     getContext: context.get,
+    getGlobalConfig: flows.getGlobalConfig,
 
     clearContext: context.clear,
 
diff --git a/test/nodes/core/common/91-global-config_spec.js b/test/nodes/core/common/91-global-config_spec.js
new file mode 100644
index 000000000..c9e7a78e6
--- /dev/null
+++ b/test/nodes/core/common/91-global-config_spec.js
@@ -0,0 +1,63 @@
+/**
+ * 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 config = require("nr-test-utils").require("@node-red/nodes/core/common/91-global-config.js");
+var inject = require("nr-test-utils").require("@node-red/nodes/core/common/20-inject.js");
+var helper = require("node-red-node-test-helper");
+
+describe('unknown Node', function() {
+
+    afterEach(function() {
+        helper.unload();
+    });
+
+    it('should be loaded', function(done) {
+        var flow = [{id:"n1", type:"global-config", name: "XYZ" }];
+        helper.load(config, flow, function() {
+            var n1 = helper.getNode("n1");
+            n1.should.have.property("name", "XYZ");
+            done();
+        });
+    });
+
+    it('should access global environment variable', function(done) {
+        var flow = [{id:"n1", type:"global-config", name: "XYZ",
+                     env: [ {
+                         name: "X",
+                         type: "string",
+                         value: "foo"
+                     }]
+                    },
+                    {id: "n2", type: "inject", topic: "t1", payload: "X", payloadType: "env", wires: [["n3"]], z: "flow"},
+                    {id: "n3", type: "helper"}
+                   ];
+        helper.load([config, inject], flow, function() {
+            var n2 = helper.getNode("n2");
+            var n3 = helper.getNode("n3");
+            n3.on("input", (msg) => {
+                try {
+                    msg.should.have.property("payload", "foo");
+                    done();
+                } catch (err) {
+                    done(err);
+                }
+            });
+            n2.receive({});
+        });
+    });
+
+});