Custom checkout?

Ok, thanks for the insight. I have a bit different situation. I would like to:
1/ in my custom script to get the values that are set up in Wix Shipping Settings (AFAIK not possible)
2/ have custom page to present the shipping methods loaded in 1/ to the customer
3/ according to the customer’s selection pre-set the values in the default Store Checkout (AFAIK also not possible)

So looking at the video I wondered how it’s done, because you have your custom Shipping Options selection… If I understand correctly you have your own Store settings outside Wix settings and use Wix more as lets say advanced hosting platform…

Very nice job btw!

Just to make sense of my situation: I need to have the shipping selected prior to customer creating the order. I can “clone” the options manually, but some customers are confused and select different values in the first step and different in Checkout. I am looking for the ways to prevent this. (And also this “manual cloning” is not changes-aware on both ends, so not the best.)