diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/search.js b/packages/node_modules/@node-red/editor-client/src/js/ui/search.js
index 7be689c4a..d3475eb15 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/search.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/search.js
@@ -26,7 +26,6 @@ RED.search = (function() {
     var currentResults = [];
     var previousActiveElement;
 
-
     function indexProperty(node,label,property) {
         if (typeof property === 'string' || typeof property === 'number') {
             property = (""+property).toLowerCase();
@@ -65,6 +64,18 @@ RED.search = (function() {
         }
     }
 
+    function extractFlag(val, flagName, flags) {
+        // is:XYZ
+
+        var regEx = new RegExp("(?:^| )is:"+flagName+"(?: |$)");
+        var m = regEx.exec(val);
+        if (m) {
+            val = val.replace(regEx," ").trim();
+            flags[flagName] = true;
+        }
+        return val;
+    }
+
     function search(val) {
         var results = [];
         var keys = Object.keys(index);
@@ -74,11 +85,17 @@ RED.search = (function() {
             val = val.replace(/(?:^| )type:[^ ]+/,"");
             typeFilter = m[1];
         }
+        var flags = {};
+        val = extractFlag(val,"invalid",flags);
+        val = extractFlag(val,"unused",flags);
+        val = extractFlag(val,"config",flags);
+        val = extractFlag(val,"subflow",flags);
+
+        var hasFlags = Object.keys(flags).length > 0;
 
         val = val.trim();
 
-
-        if (val.length > 0 || typeFilter) {
+        if (val.length > 0 || typeFilter || hasFlags) {
             val = val.toLowerCase();
             var i;
             var j;
@@ -91,6 +108,31 @@ RED.search = (function() {
                     var ids = Object.keys(index[key]);
                     for (j=0;j<ids.length;j++) {
                         var node = index[key][ids[j]];
+                        var isConfigNode = node.node._def.category === "config" && node.node.type !== 'group';
+                        if (flags.hasOwnProperty("invalid")) {
+                            var nodeIsValid = !node.node.hasOwnProperty("valid") || node.node.valid;
+                            if (flags.invalid === nodeIsValid) {
+                                continue;
+                            }
+                        }
+                        if (flags.hasOwnProperty("config")) {
+                            if (flags.config !== isConfigNode) {
+                                continue;
+                            }
+                        }
+                        if (flags.hasOwnProperty("subflow")) {
+                            if (flags.subflow !== (node.node.type === 'subflow')) {
+                                continue;
+                            }
+                        }
+
+                        if (flags.hasOwnProperty("unused")) {
+                            var isUnused = (node.node.type === 'subflow' && node.node.instances.length === 0) ||
+                                           (isConfigNode && node.node.users.length === 0)
+                            if (flags.unused !== isUnused) {
+                                continue;
+                            }
+                        }
                         if (!typeFilter || node.node.type === typeFilter) {
                             nodes[node.node.id] = nodes[node.node.id] = {
                                 node: node.node,
@@ -370,15 +412,15 @@ RED.search = (function() {
         $("#red-ui-sidebar-shade").on('mousedown',hide);
 
 
-        RED.events.on("workspace:clear", clearIndex)
+        RED.events.on("workspace:clear", clearIndex);
 
-        RED.events.on("flows:add", addItemToIndex)
-        RED.events.on("flows:remove", removeItemFromIndex)
-        RED.events.on("flows:change", updateItemOnIndex)
+        RED.events.on("flows:add", addItemToIndex);
+        RED.events.on("flows:remove", removeItemFromIndex);
+        RED.events.on("flows:change", updateItemOnIndex);
 
-        RED.events.on("subflows:add", addItemToIndex)
-        RED.events.on("subflows:remove", removeItemFromIndex)
-        RED.events.on("subflows:change", updateItemOnIndex)
+        RED.events.on("subflows:add", addItemToIndex);
+        RED.events.on("subflows:remove", removeItemFromIndex);
+        RED.events.on("subflows:change", updateItemOnIndex);
 
         RED.events.on("nodes:add",addItemToIndex);
         RED.events.on("nodes:remove",removeItemFromIndex);