Rethink Concept of Prepare and execute buttons
It might be not quite self-explanatory to a naive user, why you have to set points (i.e. prepare a path) then click Prepare and Execute.
This procedure was decided on to leave it to the user to check if the crawler planned path is impossible, right?
What about renaming the prepare
button to something like calculate path
and maybe add a message box after the calculation is done saying
"The system proposes the green path. Click 'execute' to start the mission. Replan the path if necessary."
Edited by Jan Gründling