We did moan at Ben for quite some time to get this done but it's not what most of us wanted.
At present, you can add a location and charge for it,
The client can fill in the extra form
Address Line 1:*
Address Line 2:
But after doing all that it's not showing up in the main location listing. So if your main Ad is in Miami and you want your listing to show up in Tampa as well its not there. it will be there on the search result but you can do that with keywords.