Here is my problem. I have a custom post type “Teachers”, where the custom fields are courses, course files….etc. I want to archive the teachers field group so that when a new semester starts, they can go in and change their custom fields and still have the data(courses, course files, assignments) from the previous semester accessible. Is this possible?
If you need to have archive then using fields in a field group may not be the best way. I would look at the possibility of setting up a custom post type for courses and adding a taxonomy for years or semesters and somehow creating a relationship between the teachers and courses. I’m sure it’s a lot more complicated assuming that multiple teachers have access to the same courses. You may need a custom post type for semesters, but I can’t say how all this would work together.
At any rate, there isn’t any real way to “archive” the values in a field, at least none that I know of.