Muting one host while participating in 2 zoom meetings

[swadelaw]

I frequently participate in court appearances via zoom in multiple court rooms.  Unfortunately, when both judges take the bench, I have not determined how to mute one courtroom while I speak to the judge in the other.  My only solution is to type a message to the host that I am leaving and will return after the other hearing is completed.  Is there a simpler way to just mute the host in one court room while I speak in the other?