If you want to add or remove students to your group, this is the guide for you.
Click on the "Students" tap at the top of the page and select "Enroll Students".
To add a student, in the text box, start typing the student's name. If the student already exists, you can select their name form the dropdown box. Otherwise, hit enter/return on your keyboard to create the student.
To remove a student, click on the three dots next to their name and select "Remove".