public function Offset ($index = 0, $path = '', $async = FALSE, $defer = FALSE, $doNotMinify = FALSE, $external = FALSE) {
		$item = $this->_completeItem($path, $async, $defer, $doNotMinify, $external);
		$actialGroupItems = & $this->_getScriptsGroupContainer($this->actualGroupName);
		$newItems = [];
		$added = FALSE;
		foreach ($actialGroupItems as $key => & $groupItem) {
			if ($key == $index) {
				$newItems[] = $item;
				$added = TRUE;
			}
			$newItems[] = $groupItem;
		}
		if (!$added) $newItems[] = $item;
		self::$scriptsGroupContainer[$this->getCtrlActionKey()][$this->actualGroupName] = $newItems;
		return $this;
	}