You may add appointment types and customize durations within the Schedule section.
Select the Settings tab and scroll down to the Appointment types header.
For any custom appointment type, you can choose to customize the appointment duration.
You have the ability to manually enter a duration.
Going forward, every appointment that is marked as that given type will default to the preferred duration. In the example above, “Illness” will always default to 25 minutes.
Alternatively, you can select a duration from the drop-down.
For more information, please see: