$fields->addFieldsToTab('Root.Groups', [
            HeaderField::create('OptionGroupsHead', _t('FoxyStripeSiteConfig', 'Product Option Groups'), 3),
            LiteralField::create('OptionGroupsDescrip', _t(
                'FoxyStripeSiteConfig.OptionGroupsDescrip',
                '<p>Product Option Groups allow you to name a set of product options.</p>'