Glad to hear the first part worked.
For the second part - it seems to work on the video, is it not? Not sure what the current implementation is (I don’t see any matching logic in the screenshots), but you could just store the current submenu widget (panel or whatever it is) into a variable when you open it, and then close the stored submenu when you open another one. And probably make this part of the logic (close old + store new) into a function or event so you don’t have to duplicate it for each individual button click event.