The "ALTITUDE" indicates the altitude you are currently flying at.
By clicking on the "ALTITUDE" you can correct it by writing down your offset.
If you start a rout five further screens will appear on the map. Four in the lower left corner and an additional "ETA DEST" in the lower right corner. Their meaning will be explained here underneath.
The "NEXT WP" indicates to which waypoint you are actually flying.
By clicking on "NEXT WP" you can choose between those two options.
The "DIST WP" indicates the distance between your actual position and the next waypoint you’re flying to.
By clicking on "DIST WP" you can choose between indicating the distance to your next waypoint or your final destination.
The "ETA WP" indicates the time by which you will reach your next waypoint. Their will only be a time indicated if you fly through more than one waypoint. In this case the only waypoint is the final destination for which no time is indicated.
By clicking on "ETA WP" you can choose between indicating the time you will need to reach your next waypoint or indicating the time at which you will arrive at your next waypoint.