final protected function CanCreateAfter()
    {
        $parentItem = $this->tree->ParentOf($this->item);
        if ($parentItem)
        {
            $parent = $this->tree->ContentByItem($parentItem);
            return BackendModule::Guard()->Allow(BackendAction::Create(), $parent);
        }
        return $this->GrantCreateInRoot()->ToBool();
    }