The Litchi app
can use elevation data when adding a waypoint in the smartphone app, but Litchi tries hard to make this difficult. Basically, you have to:
1. add the new point, then click the spanner icon
View attachment 101017
2. tap the dotted square
View attachment 101016
3. tap the point you want to edit
and another point you want at the
same height above ground
4. tap
Edit to reveal the
BATCH WAYPOINT SETTINGS mini-window
5. where the top line reads,
Altitude: XXm relative to Home, tap
Home and choose
Ground
6. tap
APPLY and you're done
Despite its warnings, if I have to make changes in the field my preferred method is to use my tablet to edit the mission using the Litchi website. However, my favourite way of avoiding making changes in the field is to make extensive use of Virtual Litchi Mission...