FE: add 'Wait for settings reload' option to UI settings

front/plugins/ui_settings/config.json

@@ -704,6 +704,34 @@
           "string": "Based on which value should the network topology view be ordered."
         }
       ]
+    },
+    {
+      "function": "WAIT_FOR_SETTINGS",
+      "type": {
+        "dataType": "boolean",
+        "elements": [
+          {
+            "elementType": "input",
+            "elementOptions": [{ "type": "checkbox" }],
+            "transformers": []
+          }
+        ]
+      },
+      "default_value": false,
+      "options": [],
+      "localized": ["name", "description"],
+      "name": [
+        {
+          "language_code": "en_us",
+          "string": "Wait for settings reload"
+        }
+      ],
+      "description": [
+        {
+          "language_code": "en_us",
+          "string": "When enabled, the UI blocks after saving settings until the backend finishes reloading. When disabled (default), the UI returns immediately for most changes and only waits when plugin configuration changes."
+        }
+      ]
     }
   ]
 }