I have flown the Augusta 109 helicopter a couple of times, but I had to hand fly it as I am unable to use the autopilot, if I press shift+F7 it brings up a panel showing some of the switches associated with the autopilot, but how do you select A/P on/off, nav/GPS etc, there is a black rectangular shape immediately below the panel containing the switches, but it does not seem to do anything. Any ideas from you chopper pilots?.