for the purpose of making it either to program, you might want to consider to use a towbarless push back truck. Just lift up the aircraft and push.
of course, once implementation comes around, the question must be answered to what detail the pushback is being simulated, as for most aircraft types, a hydraulic bypass pin must be inserted and later be removed and either the driver of the pushback truck or a second person must perform a check of the outside of the fuesalage as well as the ground around the aircraft. only then will be plane be pushed.
once on the taxiway, the towing equiptment and the bypass pin must be removed from the aircraft.
I do, however, believe, a nice blinking towbarless pushback truck sometime after initial release would be nice and enough.