hello , while the aircraft in cold and dark condition when request GSX it says " you need to stop the engine to request ground services !" , how should i stop the engine in cold and dark condition ?
thank you
The announcement doesn't come out for no reason. It comes because you either opened the GSX menu, or you left the GSX menu Active (icon white) from a previous session with GSX, and then pressed the GSX Hotkey when you were parked.
Since you seem surprised by this, indicated you haven't opened the menu yourself, it might suggest you might have pressed the GSX hotkey instead. Is it possible the key assigned to GSX be is also assigned to some other function, so you called that function and the GSX menu (which you left Enabled from a previous session) opened?
Preventing the menu to be opened by accident is another reason for the GSX manual to suggest this workflow, at Page 90, where the menu is explained: