public function addBulkUploader($fileRelationName = null, $folderName = null)
    {
        $gridFieldBulkUpload = Injector::inst()->create("GridFieldBulkUpload", $fileRelationName);
        if ($folderName) {
            $gridFieldBulkUpload->setUfSetup("setFolderName", $folderName);
        }
        $this->gridConfig->addComponent($gridFieldBulkUpload);
        return $this;
    }