This article will show you how you can change the amount of time that specific staff members are booked out per each service.
Go to Manager > Services and single-click on the name of the Service you wish to edit.
Click the Staff tab, then adjust the Duration and Processing Time for each staff member. Press Enter on your keyboard after you add a new duration.
Updating the treatment time will not update the duration of future appointments that already exist. It will only affect appointments that are booked after you update the duration.
If you don't change the duration on this screen for a staff member, they will be booked for the default booking time.