Right now, we don’t have a configuration option for that. The listing detail views will open in the same window. URL fields that you define on the listing can support the new window/same window link setting above.
There are two ways you could gain access to the detailed view of a listing: by clicking the link on the “Business Name” field or by clicking the “View” button.
Changing the behavior for the link can be done by modifying function get_field_html_value() inside form-fields.php (around line 71) and changing