You can reorder your contacts within the favorites list and on the display. Favorites with the lowest index numbers appear first on your display (1, 2, 3, etc.) and in your favorites list.
An existing index number for a favorite contact cannot be assigned to a new contact if it is already in use. To swap the order of two existing favorites, one of the contacts will need to be temporarily assigned an available number. Editing a contact's index number can be done using the contact's information or favorites list.