There are so many messages for ATC to use but there are some small ones that need to be added that would help ATC controllers.
[All ATC= Flight640 Do you copy?(Location: Misc Messages)
[Tower= Flight640 backtaxi runway … exit runway when able and hold short runway …(Location: Backtaxi)
[Center,Approach,Departure= Flight640 please expedite your turn/descent/climb to …(Location: Vectoring Instructions)
[Tower= Flight640 Do a right/left 360 for further descent (Location:Request 360)
[Ground= Flight640 Pushback approved, hold position until traffic is clear.(Location: Pushback approved)
[Ground,Tower= Attention all aircraft, airport is busy, be aware of surrounding traffic(Location: Broadcast)
Would these commands be helpful in the simulator?