2 new calendars:

Calendar 1: Calendar where someone can book a package with, for example, 4 sessions then select all 4 slots from the single calendar - and limited to selecting 4 slots. In this example, there is a fixed fee of, for example, $40 and they can select up to 4 slots only, if they select less, they are still charged the $40 - option to force the correct number of bookings too.

Calendar 2: Calendar where someone can select however many slots they require, ie different days and times of a yoga class for a month, and then be charged for these in one batch, ie, they select 5 at $10 each and on the final screen are charged $50, if they select 4, then they are charged $40 etc etc

Both of these would open the door to a huge amount of new clients, such as sports classes, personal trainers, dog walkers/trainers etc etc etc