Certain roles can't speak in the main chat but can speak to each other

It would be useful if there was a feature where users with a certain role can still speak to each other in a voice chat, and can hear everything else that's going on, but that the main users can't hear them.

For example, if a group is playing Among Us, it would be good to have a role for ghosts, so they can still speak to each other, hear what the living players are saying, but the living players can't hear them.

Hope this makes sense!