Firsts steps on Openfire and the plugin Openfire Meetings 0.3.9

Hello i just installed the server and the plugin. I was looking on to the pluging readme but is not to much info on there. I don’t know how to create a room for multi video conferencing. I can login in to one room for conferences and I can see to myself, and there is no audio output. I paste a few shoot about config. Thanks in advance.