Eric,
I would change the description under Function in such a way that it indicates to use a "-" minus to subtract altitude meters. Otherwise it's simply additive to whatever you had in your original waypoints. Example....If I create 2 waypoints, they are at 10m defaut. Once I use the function --> Change Altitude and type in 100m then the new altitude is 110m. If I enter 500 then it's 610m.
So someone must take care to use -xxx meters to lower the altitude.
I would change the description under Function in such a way that it indicates to use a "-" minus to subtract altitude meters. Otherwise it's simply additive to whatever you had in your original waypoints. Example....If I create 2 waypoints, they are at 10m defaut. Once I use the function --> Change Altitude and type in 100m then the new altitude is 110m. If I enter 500 then it's 610m.
So someone must take care to use -xxx meters to lower the altitude.