Using Address Books -> Address Editor
The address editor is used to add or edit the details of a contact. An
example address editor is shown in this
screen shot or this
The address editor can be customized to suit your needs. You
can rename the fields, set the colors, font style, size, adjust which fields are
displayed, and their order. See the address book's
administration page to
adjust these options.
When selecting categories for a contact, you can select multiple contacts
using the Ctrl and Shift keys on your keyboard while selecting.