It would be useful to be able to change the audio source associated with a virtual output through shortcuts. Eg, if I'm using NDI monitor to monitor Output-4, I could have a short-cut set to the 'hover' input which changes both the video and audio source to the input which I am hovering over.

This is useful if you want to "green room" vMix calls and be able to talk to the callers 'off air' via an NDI connected PC.

I know there are other ways to do this - but this is a specific use case.

For more info on what I'm trying to do, see:

https://docs.google.com/...TOvhy0c/edit?usp=sharing

(particularly page 19 - NDI with more than 1 caller).