No, you will activate Luxury to customize. You can clone current your site and database and setup it in sub domain or sub folder and use Luxury theme. After customize done, you can replace it to primary site.
Dear, I check your site and I see the DHWC Page not support YITH WooCommerce Featured Video, If you want use it in product with custom template. You need change ‘WC Single Product Images shortcode’ settings Slider type to use ‘Default by theme’ (see attachment)
