To manage course-level user options, click the global Options drop-down menu. You can view user groups [1]. User groups are the same as displayed in the global settings at the top of the page.
You can view prior enrollments in the course [2]. Prior enrollments are students who were previously enrolled in the course and their enrollments have been concluded.
You can also view a summary of all student interactions in your course [3]. Interactions are recorded when you contact the student via Conversations or when you leave a comment on an assignment.
You can view registered services for each user in the course [4]. If a person has registered a social media account in Canvas, you can see that service listed and communicate with that person through any social media site they have registered.