I teach two sections of the same course. I want to set up one conference using BigBlueButton and invite both classes.  The only choice I am getting when I want to invite students are the students in the class I am logged into on Canvas when I set up the conference. I have tried starting two separate conferences but then the audio does not work in either. It would be much better if I could merge the two conferences into one, or just be able to invite both classes into one conference to begin with. Anyone have any ideas?