Search or filter by custom fields in Directory plugin

I would like to search or at least filter my directory through the custom fields that I have manually added. For example, I have added one named ‘ciudad’ (city in english). So, at the time I show all the details of a listing, I would like to click on the custom field value and return all the listings with that value.

Other options would be search also in the custom fields. for example, I added a listing with the city name ‘Santiago de Compostela’ but when I search ‘Santiago de Compostela’ I got no results.

Is it possible search or filter by custom fields?

NOTE: I added the fields using the CustomPress plugin.