Within the CCM Autostopping Rules, you can configure a fixed schedule to either define uptime or downtime. As part of that you can choose the days and time each week that you'd like schedule to be valid for, but it's a generic schedule for every week of the month, which limits the ability to configure schedules that only apply to some days of the month.
This feature request is to provide the ability to schedule uptime/downtime for specific days of the month, such as the 2nd Tuesday of the month, or 3rd Wednesday of the month. This is useful for patching schedules where we need EC2 instances to be online for specific days, such as the third Wednesday, but off the rest. Right now we have to define every Wednesday to be online, which diminishes some of our savings Harness could potentially provide.