Thanx Umberto. Hope Aerosoft will do the same. Meanwhile I'll keep using my silly workaround (but it works). When the Airbus is loaded I edit the FSX Payload pounds (no cargo) first. Then I call the fuel truck which is set to start refueling by activating the fuel load in the MCDU, then I hit the "Load Instant" and request boarding. I can even use multiple trips and enter the passenger number manually. The bus that comes is always the correct one.