protected function _addCategoryFields($oManufacturer)
    {
        $oManufacturer->oxcategories__oxid = new \OxidEsales\Eshop\Core\Field($oManufacturer->oxmanufacturers__oxid->value);
        $oManufacturer->oxcategories__oxicon = $oManufacturer->oxmanufacturers__oxicon;
        $oManufacturer->oxcategories__oxtitle = $oManufacturer->oxmanufacturers__oxtitle;
        $oManufacturer->oxcategories__oxdesc = $oManufacturer->oxmanufacturers__oxshortdesc;

        $oManufacturer->setIsVisible(true);
        $oManufacturer->setHasVisibleSubCats(false);
    }