I would like to be able to set up specific blocks of time when clients can schedule appointments on their own. Currently, when there is an opening, clients can schedule an appointment at any 15-minute interval the time slot that is open. I don't want that to be an option for clients because it could cause scheduling confusion for me if it is not the usual time that I see clients. I would like to set up the exact time slots that clients can schedule appointments. For example, only on the hour or at 10:15am etc.