It’s a shame, but I can’t figure out what these panel decorations are for! I have clicked, double-clicked & right-clicked them, but I have observed nothing interesting. I have even tried to drag them! And I don’t know how to Google for… that.
You know, right? Please, share.
Drag a panel tab and release it above one of the small squares to change to ui layout.
Oh, nice! A GUI element whose purpose I didn’t understand and a GUI feature I was missing, both problems solved at the same time.
Thank you very much!
Formerly it’s the Placement Widget