Working with the same template (One Page) (see graphic)
Regardless of duplicated instance of a Persistent symbol. Each instance can only be on a scene once.
So you would need to duplicate menu_button2 and the drag and drop the duplicate.
Note we are talking about Persistent symbols and not standard which can have multiples of the same instance on a scene.
That’s awesome! So much work to get all these things to work! It will be worth it though!