我在插件中注册了2个自定义帖子类型，其中一个显示在左侧的管理栏中，第二个我不会显示，因此我将“show\\u ui”设置为false。

是否可以将第二个帖子类型添加到第一个帖子类型的菜单中？

first post type:

$args = array(
  \'labels\' => $labels,
  \'public\' => true,
  \'has_archive\' => false,
  \'menu_position\' => 100,
  \'supports\' => array( \'title\', \'editor\', \'custom-fields\', \'thumbnail\' ),
  \'menu_icon\' => plugins_url( \'assets/img/small1.png\', __FILE__ ),
  \'rewrite\' => array(\'slug\' => \'screenshots\', \'with_front\' => true)
);

register_post_type( \'screenshots\', $args );

second post type:

$args = array(
  \'show_ui\' => false,
  \'labels\' => $labels,
  \'public\' => true,
  \'has_archive\' => false,
  //\'menu_position\' => 100,
  \'supports\' => array( \'title\', \'editor\', \'custom-fields\', \'thumbnail\' ),
  //\'menu_icon\' => plugins_url( \'assets/img/small2.png\', __FILE__ ),
  \'rewrite\' => array(\'slug\' => \'deal\', \'with_front\' => true)
);

register_post_type( \'deals\', $args );

I try to add the second post type with:

add_submenu_page( \'edit.php?post_type=deals\', __(\'Deal\', $this->var_sTextdomain), __(\'Deal\', $this->var_sTextdomain), \'manage_options\', \'my-deal\', array(&$this, \'deal_page\') );

当做