thêm custom field cho career

wp-content/plugins/offshore-core/offshore-core.php

@@ -2691,7 +2691,7 @@ function offshore_careers_init() {
         'has_archive'        => false,
         'hierarchical'       => false,
         'menu_position'      => null,
-        'supports'           => array( 'title', 'editor', 'excerpt', 'thumbnail' )
+        'supports'           => array( 'title', 'editor', 'excerpt', 'thumbnail','custom-fields' )
     );
 
     register_post_type( 'career', $args );