As @tdgu said, you need to rename the filter so your first line should actually be:
add_filter('cpto/interface_itme_data', 'theme_apto_reorder_item_additional_details', 10, 2);
This will only show extra data on the “re-order” page.
You should also write some custom columns code to surface this information in your main post indexes. Check out this https://code.tutsplus.com/articles/add-a-custom-column-in-posts-and-custom-post-types-admin-screen–wp-24934.
Here is a complete example of both techniques that I used on a project I’m currently working on:
// Add custom field to Exhibitor CPT index "FEATURED"
// https://code.tutsplus.com/articles/add-a-custom-column-in-posts-and-custom-post-types-admin-screen--wp-24934
function rtp_columns_head_only_exhibitor($defaults) {
$defaults['is_featured'] = __('Featured Exhibitor?');
return $defaults;
}
function rtp_columns_content_only_exhibitor($column_name, $post_ID) {
if ($column_name == 'is_featured') {
$is_featured = get_field('is_featured', $post_ID);
if($is_featured) {
echo '<span style="background-color: #D54E21; color: #fff; padding: 3px 5px; text-transform: uppercase;">' . __("Featured") . '</span>';
} else {
echo '<span style="background-color: #ddd; padding: 3px 5px; text-transform: uppercase;">' . __("Not Featured") . '</span>';
}
}
}
add_filter('manage_exhibitor_posts_columns', 'rtp_columns_head_only_exhibitor', 10);
add_action('manage_exhibitor_posts_custom_column', 'rtp_columns_content_only_exhibitor', 10, 2);
// Add custom notation to Reorder page by Post Types Order plugin
function rtp_show_isfeatured_on_posttypesorder_page($item_details, $page) {
if("exhibitor" == $page->post_type) {
$is_featured = get_field('is_featured', $page->ID);
$is_featured_snippet = '<span style="margin-right: 10px; background-color: #D54E21; color: #fff; padding: 3px 5px; text-transform: uppercase; display: inline;">' . __("Featured") . '</span>';
if($is_featured){
$item_details = $is_featured_snippet . $item_details;
}
}
return $item_details;
}
add_filter('cpto/interface_itme_data', 'rtp_show_isfeatured_on_posttypesorder_page', 10, 2);