Is it possible to change your callsign via ATC?
I think you have to change it in the air cfg for the aircraft your flying.
You can add new airline call signs in the airlines.cfg in your Aircraft folder. I set my ATC call sign in the aircraft's flight number box.
I use 442 because I owned that muscle car years ago. Either this fall or next spring I will be changing it to Z51C6 😀
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