Semesters automatically enroll customers into an entire series of classes. Unless you choose to allow drop-ins. You can choose a fixed start and end date, typically a few months long, and set a weekly schedule that occurs within that time period, much like a college semester.
To start, click Schedule > New class
Choose One-off class > choose Semester > click Next
Name it, describe it, set your start date and end date, the duration of each class, and the semester's weekly schedule.
Choose whether to allow drop-ins (this gives customers the option to drop into one or more classes without committing to paying for the whole semester.
*Make sure your semester description accounts for the setting you choose with drop-ins.
Then add a teacher, payrate, choose a location, click next.
Set a price, click Next and, on the 3rd and final page, consider all additional & optional settings. Pay special attention to the last two:
'Restrict who is eligible to book' (ie. do you want this whole Semester bookable with memberships?)
'More settings' (ie. if its bookable with memberships, what will it cost in membership credits?)
Click Create when done.