My question is...

Let's say I have a sporting event, I want to stream it with commentary, where microphone input is set to master audio, but not to A bus. On this A bus I have sound from one of the cameras. I'd like to do recording only of A bus, where I can hear the event sound only, without commentary.

Is it possible to do streaming & recording with different audio source on one PC with vMix only?

Of course I realize that I can do this with additional recording or streaming program (or device), but I'm asking if I can do it with vMix, since it has these two audio buses (A&B).