This is so cool... thank you very much :) I will use it during my next workshop sessions to help my students in case they run into problems following the instru

This is so cool... thank you very much :) I will use it during my next workshop sessions to help my students in case they run into problems following the instructions of the lab: looks like it is far more natural than the "raise hand" feature. And they just need to group themselves to enjoy the equivalent of a private room for group exercises!