In Theme Options -> General –> Appearance –> the option for Property List Type for Taxonomy pages must be set to Half Map:

This will apply for all custom taxonomies:

• category,
• what do you want to rent,
• city and
• area.

And from Theme Options -> General –> Header you must make sure Media Header Type for Taxonomy? – is set to Google Maps

The Search options for the Half Map filter section can be set in Theme Options-Search-Half Map Search Form

You have the option to set the number of fields that will show in the filter section and how many fields will be displayed per row.