The following are the options for your contacts settings:
Show postal address in index display\n\n You can choose whether or not to show addresses of contacts in the general display. This is partly for privacy reasons if you are using computers in public spaces but also you may prefer a less cluttered display.
Preferred display field\n\n*  *You can choose whether the system refers to a customer (contact) by Full Name or by File As. If you choose File As, whatever contents you put in that field will be used to refer to customers. The system automatically puts Surname, Firstname but you can override this with whatever you want, including an organisation name if you wish. By default, the display field is Full Name (Firstname Surname).