i have my own domain where my customers visit. I use Shopify shopping cart and it looks like I have two pages, mine and Shopify. (Please forgive me I’m not too technical, my brother has been helping me out with my website for years). He tried to add the notes section at Check but it’s only showing up on the Shopify site, not my website I actually uses. I hope this makes sense. Can someone help me. I want customers to be able to add a custom note on a card at checkout.