You mean this?
Take Off Location mode
TakeOffLocation can be configured to return to either the ArmingLocation, or FirstArmingLocation.
Value can be set in UAVOBrowser: Settings > TakeOffLocation > Mode
The default setting to "ArmingLocation" to return to the point of takeoff is recommended in most instances.
I missed that...sorry.
The others, im not sure if I understand that correctly, have to read that again an may try in a save area.
Im new to the gps thing in Librepilot and around me there is nobody who can help so im sorry.