Hi @cleopas,
If you are using a Pro account, you can create a deal based on a workflow. In this case, you would have a property that would identify the appropriate members and that property would be your enrollment criteria. Here’s an article on that.
If you aren’t on a Pro or Enterprise account, you could add several deals in bulk via a csv upload and associate them with the appropriate contact. Here’s an article on importing objects with associations.
If you need some help, feel free to book time on my calendar.
Josh