Ideas Portal
This helpful for when a duet wants to book a private, but only one student can get the emails/updates for this. Otherwise two parents have to split cost or double emails go out to notify the parents a booking was made.
You can add more than one student to an appointment. After the appointment type is made (ex. Trio Private Lesson) you have to go back and edit the max student number. The options are to select 1-10 or no max. After you've saved the appointment, book it and search for Student 1 and select them, then search for Student 2 and select them.