It is still P mode (GPS + Vision enabled), but the switch is on F mode.   Does it make sense ?  I thought switching to F mode is leaving the P mode settings...

So, the P mode (GPS + Vision) + IOC as above.

If you want to switch to A mode (Altitude), no GPS and Vision... how to activate IOC ?  Not possible right ? since IOC needs the GPS ?

Just wanted to clear my head ..

thanks

IOC does not need GPS. It can use us it, but does not need it. When you first put it in IOC its going to ask you to reset the direction, press it and now you have set you IOC.. next time in flight when you switch to f mode, dont' reset it, just x out the dialog  box and its going to do what you ask in the direction you already set.

I hope this helps

So what it knows its orientation? The built in compass?