Custom Field

Regarding the following statement found in the Advanced Search Documentation> “This addon extends the default GeoDirectory search widget by letting you filter search results by certain custom fields you may have added to your listings.

For example, if you had added a custom select field Pet Friendly you could then filter results that only include pet friendly listings, this could be useful for hotels, café’s, bars etc.”

Question1> Which “fieldset” should I use/select if I want to filter results for Hotels that include casinos?
Text,
Text area,
Select,
HTML

Question2> Once I select the “fieldset” what do I do next?

Thank you…

Jorge