no, i post the picture for you to see, that the entries on the Jetway Tab are all graed out.
That means also, i can even not disable the jetway for any Parking on this airport.
Yes, i can move the Vehicles, but only not rotate.
But there is no problem with the rotation key, because i test this at another airports and also
when i press Y (not in the GSX settings) i can move and rotate my airplain in Slew mode.
So there is no problem with the keys.
I have no more idea what can be the reason for that problem?