At my school, we create courses and we have about 3-5 teachers/instructors enrolled in each one of them.
Each teacher, monthly, goes to his calendar and sets some available spots for his 30-minute class, which means he "owns" that event/appointment group. The biggest problem we have is that when a student reserves his spot at an appointment group, all the teachers receive the notification, not only the teacher responsible for that class in particular (the owner).
Long story short, it'd be very helpful if we could have the ability to send notifications of reservations only to the person who created/owns the appointment group in Scheduler.
Unfortunately, as of now, there's no way to solve that problem. It seems to be a quite easy adjustment to be made, though.