Sitting at KABQ in the GA area. Suddenly a Mooney appears next to me. Then Southwest 2305 requests pushback... And the Mooney starts moving backward.   Then it requests to end the pushback, and the Mooney stops. Then SW2305 requests taxi, and as soon as clearance is given, off goes the Mooney. Halfway through its turn away from the parking area, the Mooney gets duplicated - the new Mooney is sitting where the old Mooney just vacated. Then Generic Nsomethingoranother requests pushback, and the second Mooney starts moving backward.  Huh. 

 

I wish I'd had the presence of mind to follow the "Southwest" Mooney to see if the sim made it behave like a 737 on takeoff. 😉

 

It probably just looks for a open parking spot to spawn live traffic.

Yep, seen this too. There seems to be 1 spot where the Mooney spawns, and 1 where a generic twin engine airliner spawns. A few minutes before push back.