Use the Appointment Categories page to add a category to an appointment. Appointment categories such as Conference, Deposition, or Trial help attendees understand the nature of the appointment they are attending and allow them to search for appointments by category.
Categories may have one or more sub-categories and are listed in a hierarchical view with the main category at the top and all of its sub-categories listed below it.
Based on your access rights, you can view, add, change, or delete categories.
See Setting Category Details for more information.