The class enrollment tab is where admins can either add new students to a class section or add a co-teacher to a teacher's pre-existing class section.
In the drop down menu in the upper right, click on Add New User. This will bring up the following form:
Please fill out the applicable fields and then click, "Yes, Create" when done. New students or co-teachers will then be added to a specific class section.
The Move User(s) option can be used to move a student or teacher into another class section. Simply fill out the below form and the selected user will then be moved into the specified class.