using WP_places with Listing Theme

Hi, i found your wp-places plugin. Really nice plugin!

For a listing site I was wondering if you would know a way to map the addresses from another custom field into the wp_places shortcode…
I’m using a wp listing theme with adresses already added, and would like to use that field in the WP_places shortcode.

something like this:

[wp_places rating address=”_location”]

Would anything like this be possible?
or in php, how would I call this field from the database?
or… I found an old shortcode from an older WP_places version.
[wp_places_search address lat= lon= ]

Does this still work?

thanks in advance for your reply.

Roald