I just acquired the Litchi app and have stared playing around with mission planning on the Mission Hub. Very cool. And it has a feature I have been jonesing for for a long time. The ability to plan autonomous AGL missions. In settings if you enable "online elevations" then when you create a waypoint you can specify normal relative to takeoff position or "above ground". This will be great for places where the mission takes the bird uphill... so instead of having to guestimate how much elevation the hill is adding you can just specify "above ground" and maintain say, a constant height above the tree line as the drone goes uphill. Of course this depends on the accuracy of the ground elevation data. Anyone try this? I am going to try it this weekend.