1.On the appointment overview shown at the right side after selecting the desired appointment, click on "Actions" and select "Manage recurring service" from its dropdown
2.Once taken to the "Manage Recurring Service" page, click the "Actions" button again and select "Adjust service frequency" from its dropdown
3.Adjust the frequency of the service by looking under the "Repeats" section in the pop-up box
4.The "Starting" field will be the new starting date of the new recurring schedule. While "Starting with appointment on" has all the dates of when the current appointment cycle will occur. Selecting one will trigger the changes on that particular day.
5. Hit "Update Service" to apply the desired changes