You can put your operator ID in the Fly app so it appears on the RID and Aeroscope emission; I wouldn't recommend that as it opens the gate to automatically fining you, and RID and Aeroscope can be picked up from several Km away (up to 50 with a big antenna, around 5 with small antennas and around 3.5 Km with vanilla smartphones/tablets.).
The serial number is automatically broadcasted as soon as you engage the motors, so you don't need to put it again.