You know, having distance labels at intervals for the circles while placing something in orbit would be nice because it's hard to get a sense of scale of how far you are from something if you can't see what the distance is. Not all of the circles need to be labelled, it can just be at intervals like 1 AU, 0.5 AU, 0.1 AU, or outwards from 1 AU to 10 AU, 20 AU, 30 AU, 40 AU, 50 AU, 100 AU. Or whatever GA thinks works best.