I am often having to cancel appointments just to recreate them again when something has changed for myself or my client in that appointment time. I have hybrid clients that ask to switch whether we meet in person or online, as well as some who need nutrition or habit coaching and decide to do that instead of a workout for time restrictions. It would also be helpful to be able to change the length of time to a specific type of of session, even one that we have created to be a specific length of time, so that if we have some extra time on the back end, we can accommodate the extra time.