Add more vehicle for SITL in FlightGear?

I’m new in Ardupilot and learn to use in SITL before real use in drone, plane, car etc. I’ve success use (Plane) and (Copter) as description here

Is there a way to add more than 2 of these script guideline? For example : helicopter , other kind of plane.

Well, I figure it out already just copy those sh script and change name of Flightgear aircraft.