+xYour question has already been answered. The height of the stack is determined by how much stuff is showing in the list on the right, so if it happens to be tall enough, you'll see high airspace depicted even if it's not showing on the map.
The Mapping options in our iOS app are available at the bottom-right corner of the map.
Yes. You see: It's no problem to have a huge Window, if there is a big amount of textual information.
So it should be no problem, to make the window slightly bigger, to reliable show the airspaces even when less textual information is available.