This filter is applied within the bcn_admin class in the admin_page() function. This filter is intended to allow users to override the default behavior of Breadcrumb NavXT root page drop down options in the settings page. This filter was introduced in version 7.4. It receives two parameters:
- $args – (array)(required) The arguments passed into
wp_dropdown_pages - $post_type – (string)(optional) The name of the post type