GSX L2 adds the following to GSX:
- Animated passengers
- Automatic replace of all default jetways in all default airports with SODE jetways.
- Ability to manually replace jetways at 3rd party sceneries too, or edit default airports to add/change jetways, even in multiple configurations ( up to 4 per gate )
- The new Fuel Hydrant vehicle.
You can test all full function of GSX and GSX L2 at any FSDT airports you own, since they are entirely free there.