Hi All, I'm a newbie in Shopify App development. I'm currently studying how to develop an app that can allow users to choose pre-defined addresses during checkout procedure? I've done some searches and followed the tutorial Build a Shopify App with Node.js and React, but still couldn't figure out how it can be implemented yet. I found a sample website (https://www.wcstore.hk) which does similar things I'd like to achieve. I'll explain a bit more below. In a normal/standard checkout, the normal procedure looks like: Cart > Information > Shipping > Payment But in the sample website, its checkout procedure looks like: Cart > Delivery options > Information > Shipping > Payment As you may see, a completely new page is added between Cart and Information page. Could anyone please tell me if all this can be done by a Shopify App? If yes, could you please also tell me how it's implemented. I'd like to know where to start and corresponding documentations. Thanks a lot.
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