When you publish your course you have to option to 'Allow comments'.
When you publish your course you have the option to 'Allow comments'.
If you tick this option, Users will be able to add comments on each page of the course.
Users will be able to see and make comments at the bottom of each page and can 'tag' other users in the course by typing '@' followed by the name of the other users, so it can be used as a way to address specific users or discuss the content as a collective group.
Contact us at firstname.lastname@example.org for help or more information.