Hi,
Just downloaded GSX as I considered it a better option than AES which I used to have. One thing that I cannot see is how to change the position of the aircraft on stand. Because FSX loads it too far back in for example UK2000 EGKK scenery. Done a search in this forum but not come up with anything about it. AES gives you an option, once the aircraft is at the gate, to reposition it to the correct spot by a hotkey dependant on aircraft type. Read the manual but did not come across anything that explained it.
Regards
Phil