Creating an EditorPlugin to Display a Scene on MenuItem Click in Godot

Help Programming
1

Hello, I would like to create an EditorPlugin that displays a scene when clicking on a MenuItem. Here is the code:

private void OnMenuSelected(long id) 
{
    PackedScene packedScene = new PackedScene();
    packedScene.ResourceName = spriteName;
    packedScene.Pack(new Node2D{
        Name = "Test",
    });

    EditorInterface.Singleton.EditResource(packedScene);
}

But this is not working.