GSX, Ground Services for FSX it's a revolutionary new product that simulates several operations on ground, like Marshalling, Catering, Boarding/Deboarding of passengers and Baggages, Stairs, Refueling vehicles, Pushback with realistic behavior, Folllow Me cars, Docking System and more, all featuring many native FSX animations and belivable human characters.
Not tested on P3Dv4 and above