There are various reasons using behind report schedules in addition to just having scheduled reports, such as combining multiple custom reports into one group that can be run with one click (but without the requirement of being automatically run).
There are also times when scheduled reports need to be temporarily disabled, without the overhead of deleting and recreating them.
To resolve these issues and add to the flexibility of STM reporting; please add a "Disabled" or "Manual" option for Report Schedules (in addition to the Daily, Weekly, and Monthly options).