In iClassPro V2, mass enrolling is done from the calendar page. Follow the instructions below to start mass enrolling students:

Go to the calendar page.
Click the link on the day you want the enrollments to start.
Click on the Class you want to enroll into (The class has to meet on the week day of the date you selected on the calendar to show)
Then, you will get a list of your students that you can search through and each student will have a checkbox next to their name.
Simply check the students that you want to enroll in that class, and click next.
Then, confirm the enrollment details (start and drop date, billing schedule, tuition amount) and click finish.

That's It!