I guess that answers my question. I'm currently learning the CRJ 700/900 right now, but if PRO ATC X focuses more on airliners and not fully function with the default models then I think I'll pass on it. I was mostly looking for an ATC tool that can assist me with startup, taxi, takeoff, flight, and approach. As for flight planning I also saw that Pro ATC X has a flight planning feature that you can upload to your aircraft. Not so sure on the other add ons cause I haven't looking into them yet. Someone else on a live stream had said that Pro ATC X doesn't direct ground traffic from the tower, which kind of is a bummer. Hope I'm wrong though. So that's why I wanted to ask before I hit purchase.