BRAA between contact gives you: bearing, range, altitude, aspect. With the coming 1.1.0 in few days, you will have also interception cap/distance/time.
All values can switch between imperial and metric units.
Currently you can choose between 1 and 120 seconds (I can increase if needed) or the zoom independent mode.
Not at this moment, it is on my todo list, no ETA on that but certainly come on future releases...
LotAtc is user-feedback driven, I try to implement what users need/ask (of course depending of time needed as I develop it after work and on night). So everything is possible in theory :D