passengers on small jet stairway

[Flightdoc]

I'm enjoying GSX now that I have all my passengers loading! But on small jet stairways they are often walking on air. Is it possible for the user to adjust this or is it possible for a future fix? Also the passenger bus is arriving before the crew bus is leaving - with this awkward blending of models -- images for both situations attached.

[virtuali]

Is it possible for the user to adjust this or is it possible for a future fix?

It can't be "fixed", the only thing you can do is play with the embedded stairs end/start points to make it less visible.

Also the passenger bus is arriving before the crew bus is leaving -

This is not normal and shouldn't happen, please provide reproduction steps.