You can modify item content in the listing using placeholders. Display extra fields using {extra_field_name} and custom fields using {%custom_fields_name%}.

How to use listing placeholder

Step 1 Go to Add or Edit Map and scroll down to ‘Listing Settings’ section.

Step 2 Then Update ‘Listing Placeholder’ input.

Add Extra Field

Step 3 Click on Save Map and open it in a browser.
You’ll see extra fields add in listing.

Display Extra Field