Hi There, From a long time, I am searching for the approaches to make extra product options or the custom product options along with its price i.e Addons through Shopify App. Specially incase when all 3 Shopify product options are already filled from shopify admin. i.e 4th product option with its price. I am also curious about how the apps like bold product options or Infinite Product Options etc work behind the scenes. Thanks.