Hello,
Maybe it is possible to divide crew + pilots and passengers.
It should be possible to do the following:
1. attach jetway or stair(s)
2. call for pilots and crew so that they can prepare the plane for boarding.
3. call for fuel
4. call for catering
5. call for passengers and loading of luggage.
6. ...
Could you separate these actions ?
Best regards.
Eddy.