How to add the "Comments" element to your course
In order to add the comment element to your course, you must first go to the course in question, then enter the lecture to which you want to add it (number 1 in the image)
Once on your lecture editor, simply go to the "Social" section on the left side of your editor, then select the "Comments" item, then drag it onto the editor where you want it to appear. (number 2 in the image)

Students can reply to a specific comment located on the course lecture, just by clicking on "Reply"
Please note that the course owner can delete all comments added to the course, while the student can only delete his or her own comments by clicking on the trash can icon.
Note that if you wish to be notified each time a new comment is left by a student, simply check the box "Send me an email each time a new comment is added in courses that I've created" in the "Notification settings" section of your systeme.io account.