If you teach multiple sections of the same course or work with others to teach the same course, you may want to combine all of your sections into one Brightspace course shell. If you wish to merge courses, request a merge before the term starts.
Note: About groups and sections details how sections work. In the Classlist, students would only see the students in their section and the course instructors, BUT they would see their peers' discussion topics UNLESS you separate them by section and they would see their group members even if they are in a different section. See documentation.