In the Edit contact screen, click the Addresses tab.

Click the Add address button. The Address table loads, or has a new row added if an address already exists.

Enter a new address in the Address edit field.

Select the language in which this address will be understood from the drop down list box.

Specify a Use type for this address. Use type definitions are reserved for administrators and users to establish.

Click the green update check icon. The address is added to the table. The Add address button reappears.

Click the Save changes button at the bottom of the page. The new address is written to the Registry.