when you're working on multiple buttons, it would be nice to see both windows at the same time. Either for like get button variables (when theres a few) or just optimizing buttons that talk to eachother.
Or I use a "copy paste" button with a few reusable lines in it. I find myself clicking in and out of buttons to go fetch my presets to copy.
Either allowing button editing windows to pop-out from the program or just somehow allowing 2 buttons open at the same time would be insane.