Is it possible to show more than 1 custom field values in a single drop down? For example, a post has three custom fields. 1. City 2. District 3. State 4. Country.
Suppose I have to filter by location. I want that the values of city, district, state n country appear in the same drop down list (Multi Select). I don’t want to create multiple filters as it is making my search form very long.
Unfortunately that is not possible, each filter represents one single custom field only – otherwise comparing the values would not be possible against the field.