Here is the accordion.php code that creates the faq entries.
I added the code from the documentation to my function.php in the child theme, but of course this is not a post type I'm dealing with, but a page with an add-on.
/** * This snippet adds metadata of "employee" post to search index */ add_filter('wpfts_index_post', function($index, $post) { global $wpdb; // Basic tokens /* * This piece of code was commented out intentionally to display things * which was already done before in the caller code $index['post_title'] = $post->post_title; $index['post_content'] = strip_tags($post->post_content); */ if ($post->post_type == 'employee') { // Adding new token "employee_data" specially for posts of type "employee" $data = array(); $data[] = get_post_meta($post->ID, 'address', true); $data[] = get_post_meta($post->ID, 'phone', true); $data[] = get_post_meta($post->ID, 'name', true); $data[] = get_post_meta($post->ID, 'function', true); $index['employee_data'] = implode(' ', $data); } return $index; }, 3, 2);