Sooner or later we will have passenger airliners with onboard stairs, official, third party or mods, that cannot use neither the jetway nor the boarding ramp.
Planes such as: the Sud-Aviation Caravelle, the Dassault Mercure, the Douglas DC9 and MD80, the Boeing 727 and 737 (early), the de Havilland Dash8, the Fokker F27 and F100, … and many more, including most Business Jets.
So, maybe Asobo could add an Airport Bus alternative. Like a small VIP Bus for Biz Jets and a large “Bendy” Bus for the Airliners.
New services could look like this:
FUELTRUCK = 1
BAGGAGE_LOADER = 1
CATERING_TRUCK = 0
BOARDING_RAMP = 0
BOARDING_BUS_SMALL = 0 < NEW !
BOARDING_BUS_LARGE = 0 < NEW !
GROUND_POWER_UNIT = 0
PUSHBACK = 0
SMALL_PUSHBACK = 1
MARSHALLER = 1
JETWAY = 0
Just to be clear, I am only suggesting boarding buses here, without any animated passengers.
I already made a Zendesk request.