Hopefully these are simple questions for someone out there.
1.Does AFCAD change/add runways, ILS headings, etc. or does it strictly affect parking? I get conflicting information.
2. How do overlays work? I installed an AFCAD for KSFO, now my sim shows two airports there. I get two ATC voices from the tower. Very annoying. Is this normal? If so, how do I change it back?
3. What help I've found mentions assigning airlines to the different overlays. How do I do this?