Ok, so I need to do this:
Locate the airplane.cfg file for PMDG
create a GSX.CFG file there and add:
[aircraft]
refueling = 0
save the file. Everything will work, but I wont get the fuel dialog. Correct?
And just to make sure, GSX does not actually load any passengers or cargo, its just playing sounds and animating. So just disabling the sound of PAX loading will give me evry thing I want.
Sorry for the noob questions, but I only owned GSX for 2 days