+xIs it possible to make one step ahead and create another type of In-Flight reminder besides timer, that will appear when you cross a selected area/altitude? It will help to resolve a variety of different tasks from switching QNE (1013 hPa) / QNH on your altimeter to contact ATC before entering controlled airspace etc.
+1 for me. Was going to ask the same. Could be tied to a Waypoint in flight and triggered if we approach the waypoint. Thanks for suggesting it!