For a course, it's possible to limit the number of users who can enroll themself with a key.
For self-registration with a key into a group in a course, that's not possible. I can create unique enrollment-keys for each group, but I can't limit the number of users who can enroll with these keys.
In my use-case, I need this feature. I want to create one single course which can be used by different groups of people. I need to be able to limit the number of max users of each group. The number of max users is different for each group.
Is there any setting I didn't find yet? Do you know a plugin to limit max users per group? Is there any documentation for developing such a feature by myself?