Опции и хуки woocommerce

опции https://misha.agency/woocommerce/dopolnitelnye-platnye-opczii-na-straniczu-oformleniya-zakaza.html
хуки https://techbear.ru/woocommerce-checkout-hooks/

https://misha.agency/woocommerce/rukovodstvo-po-hukam-straniczy-oformlenie-zakaza.html
https://misha.agency/woocommerce/huki-straniczy-korzina.html#woocommerce_before_cart_totals
перечень хуков https://woocommerce.github.io/code-reference/hooks/hooks.html