private function _removePageSubmenuItem($nSubMenuPageIndex, $sMenuSlug, $sPageSlug, $sMenuTitle)
{
$_aRemovedMenuItem = $this->_removePageSubMenuItemByIndex($nSubMenuPageIndex, $sMenuSlug, $sPageSlug);
$this->oFactory->oProp->aHiddenPages[$sPageSlug] = $sMenuTitle;
return $_aRemovedMenuItem;
}