George,
Just to understand, what does your requirement look like:
1. You want to set up a class recurring say once a week, same title, description etc. And you want to invite the same set of attendees in it or different set.
2. You want to set up a series of classes say 3 PM, Tuesday of every week with the same set of attendees but its not the same topic but a series of topics, one for each class.
I am asking this because both the above scenarios are different for us.