What happens if I tap on screen?
Tapping on screen, functions like the left mouse click in desktop Windows.
Tap on-screen buttons to input or to navigate through menus for example.
Tapping a waypoint on the map presents a list of Airspaces and Waypoints. Waypoints are sorted by distance from the location tapped.
This offers a quick way to select a waypoint from a group of waypoints.
You can also tap on the map to get directly to certain menu items such as: Goto and Airspace.