[F22-Raptor-2006]

pretty sure the tailwheel is down to the model itself. There will be a hook there telling it that gear up means move that bit as well as the other 2 bits under the wings. You'll have to edit the import the model to max and edit it and export it to change that I think. The FM will say something like "gear=1" or "gear=0" something like that which just means whether it has retractable gears or not.