How do I get Google Maps to take the data from multiple fields for the address?

Hi there,

How do I get the Google Maps plugin to take the address data from multiple fields (ie. address, city, state, country) instead of just one field? I want to use multiple fields for the address so that users can sort the reviews so that they can find only the restaurants that are reviewed in the city/town they are looking for.

Thanks,
Nathan P.