I’d like to be able to have the ability to send aircraft into preset flight paths that follow the major departure and arrival routes to and from airports. They could be a set of semi automated flight instructions that tell the pilot alt , head, and speed. That might ease the work for centre, departure and approach operators.
The other feature I would really love, is the ability to colour code the craft on my ATC screen, eg, blue for departures, green for arrivals, yellow for VFR’s, white for patterned craft, red for those that I need to be careful of or just simply ignore (you know the ones) with the absence of being able to ghost them we should be able to privately identify and ignore them until they behave. This would be a management tool and would not change the colours for everyone, just those on your screen.
And I really need taxi lights, it is near impossible to see anything at night. Actually I think that should be the next major update, a full night and weather update.