Address Book Administration -> Categories
When using address books a combination of all global categories as well as
categories defined for that particular address book will be available.
From this page you can add a new category, rename existing categories, or delete existing categories
for this address book. To create a new category type in the new category name and press the "Add New Category" button.
Category names must be between 1 and 15 characters long, and can consist of any
character except a comma.
To rename a category, edit the displayed category name(s) and press the
"Save" button. To delete a category select the "Delete" option next to
that category, and press the "Save" button.
To edit global categories visit the Global Categories page
in the Installation Administration area.