Combining Classes

I was wondering what could be done to combine classes in classcraft? We have been doing a hybrid with half the students one day and half the students next day, so I had students in different classes within Classcraft for Random Events etc. we are now going to go back to full capacity on October 12, and I would like to combine the a group "A" and the group "B" students without students losing any types of points powers etc. I’d also like to keep their teams, if possible.