/**
  * Reorder the node without changing the parent.
  *
  * If the node is the last child, or is a top level node with no subsequent node this method will return false
  *
  * @param AppModel $Model Model instance
  * @param mixed $id The ID of the record to move
  * @param int|bool $number how many places to move the node or true to move to last position
  * @return boolean true on success, false on failure
  * @access public
  * @link http://book.cakephp.org/view/1352/moveDown
  */
 public function movedown($Model, $id = null, $number = 1)
 {
     if ($this->scoped($Model)) {
         $id = $this->__setScopeFromId($Model, $id);
         if (empty($id)) {
             return false;
         }
     }
     return parent::movedown($Model, $id, $number);
 }