As you guys created WAS im sure that your a more advanced TTD player than me.
However i would like to show you how i use WAS to hopefully help you.
First i create an airport on a corner (to stop confusion later) then i create one of every aircraft (takes 20 mins but worth it)

Next,
at the hub of the airline, in the secondary hanger (where available).
I create the fleet each programmed to only the HUB airport.
This process means that new aircraft can be simply cloned, then all is required is 1 click to route to the destination.
(non HUB routes require deletion of orignial order)
Its best to create the new aircraft in the primary hanger This enables you to give a 'all-hanger' green flag without letting out the template aircraft.
Hope this helps, thanks for WAS guys, its super
