I did exactly that up to 4) ...
but: the AI cannot keep the altitude ... the helicopter sinks
therefore, I activate autopilot and the heli keep position and altidude.
That works on "pilot" and "gunner" seat ...
Interesting: with the analog joystick throttle I can still adjust increase/decrease/hover precisely.
then, if I activate "Steuerung freigeben" (on the gunner seat) the heli sinks ... (the autopilot can not keep the altitude, and there is no reaction for analoge input anymore):
thats the problem ...