I wouldn't like a forced fullscreen. While it seems a good fix to hide the editing, the variables window is important to hunt for bugs. Adding zoomlevel and fullscreen as buttons (rop right maybe) would be more of a convenience update. Most students work with a fullhd or 1366x768. I just found that there are actual statistics about that, wow: https://www.screenresolution.org/. It's mostly the room tool, where they didn't notice the bottom row.
I didn't know there was a beta until I saw your last post here. :) Is it still available somewhere?
Seeing other feedback, I also have to second the sorting of drawings in folders. It totally gets out of hand when they start building real intense stuff with objects consisting of multiple drawings. ^^