Set up voice without video for ALL

Hi all; new GM here. I understand that as GM I can set up to have voice and video chat or not. How can I set it up to have voice chat only , without the video boxes? I see that when I turn off my video, there's still a player box there. I would like to get rid of all of that if possible, while still having voice chat for my players. This should also save bandwidth. I could not find anything on having voice chat without video in the wiki or the help center. Thank you!

If you turn on the WebRTC technology (Voice/Video) it is up to each player to choose which parts they send and receive. That requires communication and cooperation with your play group. There are still options to reduce the avatar sizes or drop them down to just names. These are higher up in the settings tab. You can use a CSS style to eliminate them altogether , but that won't affect bandwidth. It will just free up a bit of screen real estate.