The "Regulars" feature gives tutors an organizational tool to keep track of and easily access the student profile of your regular students. Students do not know if they are on your regular list, this is only for your own reference. You can open up reservation availability in your schedule specifically for regular students or you can propose a reservation with one of your regular students.
To add a student as a regular simply go to their student profile page and on the left side you will find a toggle to "Add to My Regulars".
Once a student is a regular they will appear in your history page in the "My Regulars" column. If you'd like to remove a student from your "My Regulars" simply click on the "Edit" button, select the checkbox next to their entry, then select "Delete".