Ability to customize length of appointment blocks

I would like to request an addition to the Clinical Settings section for "Schedule Rows". Currently the available "Minutes per Block" are 10, 15, 20 and 30. I would like to request the addition of 5 minutes so that we can have some clinics operate with a 30'/45' appointment schedule and other clinics operate with a 40' schedule. This would allow clinics the flexibility of choosing what works best for their patient population and treatment needs as well as allowing all clinics within the same database the opportunity to have a visually appealing schedule.

An alternative solution would be to allow clinics within the same database the opportunity to select the Minutes per Block setting that works best for them; i.e. allow that to be clinic-specific rather than a blanket setting for the entire database.

Thank you!