1. Bringing the video images of participants on top:

With the upper left checkbox you can pin and enlarge the video of participants on top position:

Here you can toggle the screen layout:

You can bring up to 4 video streams of participants on the top:

Other participants appear at the bottom right of the screen with thumbnails or name. The nickname remains visible for all participants and the checkbox allows to bring participants to the top, to pin them or swap them:

How do I control the audio signals of the other participants?

Participants can be muted via the loudspeaker signal.

These are only muted for yourself, but not for the other participants in the session:

Everyone can switch on and off the microphone individually. This works, as before, via the microphone icon in the doozzoo taskbar.