This is not currently possible.
Currently, this is limited.
See the documentation.
At the page level, yes, but not for individual listings.
They can be sorted in a number of ways.
- Add to the theme’s functions.php file:
- Make sure to change directory_dir_ltg to the post type name of the listing in your directory. You can view this from Directories –> [Your Directory] –> Content Types.
- If you have multiple directories, simple add multiple add_post_type_support, one for each directory.
One can add fields to a filter but not to the search, see documentation for more on filters.