If you want to open a virtual self-help group, all you have to do is send me a PN and tell me the name of the room. I then open a room and send access data. They can then pass these on to their group members. As long as the room is not actively closed, it can then be used by the group as often as desired.
We do use BigBlueButton, installed on a safe server in Germany / Europe.
Kind regards
UlBre