Host and Co-Host can configure who can hear them

It would be extremely helpful to allow for example Co-Hosts to setupt their audio in a way that only the Host can hear them. So that they can talk to the host and inform them about changes or remind the host of something without anybody else listening.

Would be super helpful to be able to define Shortcuts for Audio configurations allowing the host to quickly switch between answering the co-host(s) only and talking to the whole audience again.