Global Mute - Different Groups

TeamSpeak Server Permissions
1

I know there are some threads and such out there regarding this thing. But I haven’t found a solution to the problem I face. So I have different groups like

  1. Server Admin 2. Admin 3. Poker 4. Main Speaker 5. Normal etc.

During sometimes when we are like 20+ people we wanna have 1 guy only be able to speak or maybe 2-4 people like the group “MAIN SPEAKER”. I know that you can put -1 on talk power in permission but then I have to add it to all groups except nr 4. But is there not a simpler way to mute all groups in TeamSpeak except nr 4? Like talk power

3

where do i go to set this. i’ve looked everywhere