Of course I've just started using this fine program of yours and don't know if there is an immediate answer. But I think some method of directly selecting the widget you want to work with without having to click on it would be nice. It could be something as simple as tabbing through them, using a box to enter the number of the widget you want to edit (maybe with arrows on the side to scroll through the selection,) using the arrow keys, etc. The problem that I am having that prompts this idea is I often have one widget directly on top of another, which sometimes makes it hard to select the one I want to work on.
Also, maybe a few more sliders like you use to control the X/Y position of the widget, with an adjustible accuracy. Readouts, showing angle and X/Y position of the widget would be nice, too. lol I'm sorry. I can't stop messing with your program, and these things keep popping into my head while I'm doing it.