I'm sure Dynon will chime in, so hopefully I do not give any bad info, but:
1) No. HSI, BRG1/2 can only be tied to a source - not individual waypoint, etc. Thus, if only one source, all would be pointing to the same point.
2) Yes. I have 4 sources - SV, 430, 496, and iFly. Right now the only...