public function editProductClassField($product_class_id)
    {
        $this->setProductClassProductClassField($product_class_id);
        $this->setTitleEditProductClassField();
        $this->setBreadcrumbEditProductClassField();

        $this->setData('product_class', $this->data_product_class);
        $this->setData('fields', $this->getUniqueListProductClassField());

        $this->submitEditProductClassField();
        $this->outputEditProductClassField();
    }