If you want to show some new fields on the property listing page you should do the following steps:
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2- Override /path/to/wpl/views/frontend/property_listing/tmpl/assets/default_listings.php file into your (child) theme and then modify it to show your desired field data. You can check this KB article for overriding core files into (child) themes. You can find rendered data of your desired field into $property['materials'] variable. Then you can simply print it to the page and apply your desired icon if needed using some CSS codes.
Note: The same scenario is applicable for showing agent fields in the profile listing menu. You should override /path/to/wpl/views/frontend/profile_listing/tmpl/assets/default_profiles.php and then print your desired field from $profile['materials'] variable.