Being able to hold the mouse button down is certainly much nicer. Not being able to see the examples while you are solving makes it harder than it should be though.
Seeing the examples while having the editor visible. That's a good idea. I haven't explored this direction, since I had my phone (with tiny screen estate) in mind.
Drafts for a such a UI are much welcome. However I'm probably too lazy to code it though.
The short story. I needed something that could render thumbnails of tasks, so I could visual debug what was going on in my solver. However I have never gotten around to make the visual inspection tool. After having the thumbnail renderer, mid january 2024, then it eventually turned into what it is now.