1. Navigate to your course.

2. Click "Choose Your Period Here"

3. Click the gear icon to reveal the drop-down menu.

4. Click "Edit settings"

5. Choose the groups you wish to have as an option for students to select.

6. Click "Add Groups"

7. Click the group(s) you wish to remove.

8. Click "Remove Group"

9. Click "Save and return to course" or "Save and display" if you want to view the selector.