Just want to add my +1 here - was planning a trip to one of the local "airwork" areas this week and noticed they've all gone from Skydemon. Quite often we'll get clearances into controlled airspace like "cleared 6000ft and below within
Airwork Echo" and it's incredibly useful to see where the airwork boundaries are on the screen, especially since it's part of the clearance!
I remember pre-SkyDemon it was quite a lot of extra work/distraction to keep an eye on lakes/churches/etc. to stay within the area, and a faff to constantly refer to the paper map when you are trying to practice stalls and steep turns, etc.
This also applies to transitioning when flying in controlled airspace - have often received an instruction like "aerial sports Eggemoen B is active - stay clear" (normally due to glider activity) - not having the boundaries for that on the screen is going to be painful...
They are pretty much first come first served but there's nothing to stop someone else using the class G (lower) part while you are buzzing around in there. ATC won't clear two aircraft to operate simultaneously in the controlled bit (e.g. 3500ft - 6000ft), they'll often just suggest an adjacent airwork area.
As a temporary measure I guess I can set up waypoints to mark the corners but you have to appreciate that is clunky af
I appreciate there are possible confusing factors and inconsistencies across countries - but I second the expectation that SkyDemon should (at least as an option) show the same detail or more than the ICAO charts, not less.