Adding a student to class for a future date

What specific challenge or problem does this idea solve?

We have students that need to add this class but start is for the following month. We would like to add the student to take a spot in the max number of students for the class. This way teachers also know when they start so they can't mark them absent.

How should this work?

Who will benefit (Admins, Staff, Students)?

How will this change impact your daily tasks or overall experience?