Maybe one more question:
I am having a bunch of people (around 100), which should only be able to see a certain category. We offer a study and meditation program on donation base (lets call it program 1) based on 4-months modules building up on each other. After each module the participants can decide if they will enrol into the next module or stop for now - Those who need a break, can continue one year later with another group (program 2) .
I built it up in a way, that each program is a category and each module a course within. No one else but the current participants of the running module should be able to "see" the new module to enrol into it.
I have hidden the category program 1 and created a group for all the current participants (around 100) , who can see this hidden category. When someone is not continuing, I just delete him out of the category group. He is still enrolled into his former modules, but cannot see the new ones anymore.
so far so good.
Now I am facing the problem, that another similar structured "program" starts and I need to "copy" all group members from the above described category group to another category's group. But I cannot find a way if not comparing all 100 participants and do it manually for each person.
I hope it is understandable.
If anyone has a functioning workaround, I would be very happy.
Thank you