This lets students enrol themselves in your course. You can put a password on so that not every student can just enrol.
NB: students who have self-enrolled must either unenrol themselves from the course when they are done, or the teacher must unenrol them manually. They will not be removed automatically when the course finishes.
Instructions:
(we recommend deleting guest access as this will make the 'Enrol me' button to be located in an obvious pace)
» Guide to Moodle