Script to visualize connections

addons/ButtonLink/ButtonLink.cs

@@ -0,0 +1,21 @@
+#if TOOLS
+using Godot;
+using System;
+
+[Tool]
+public partial class ButtonLink : EditorPlugin
+{
+    public override void _EnterTree()
+    {
+        // Add a custom type for visualizing the link
+        Script visualizerScript = GD.Load<Script>("res://addons/ButtonLink/DoorButtonVisualizer.cs");
+        AddCustomType("ButtonDoorVisualizer", "Node2D", visualizerScript, null);
+    }
+
+    public override void _ExitTree()
+    {
+        // Remove the custom type when the plugin is disabled
+        RemoveCustomType("ButtonDoorVisualizer");
+    }
+}
+#endif