What is "Default Settings" and how to set up? Default settings is the general setting that you can provide for all the products. Assume you want to add a product for preorder, this settings are preloaded for the product and you can do customization on top of that if you'd like to. What is "Preorder Products" and how to set up? In a PreOrder product, you can add a product along with all its variants. Once you add a product here, you will be redirected to a product page and the settings you provided in the default setting will be preloaded here. Now, you can customize based on what you desire for that product. What is "Preorder Collections" and how to set up? In a PreOrder collections, you can add your desired collections and like product page, you will have a page for each collection and you can customize all feature in collection level. What is "Scheduled Orders" and how to set up? In the Scheduled Orders section, you can see the list of scheduled orders and also have the ability to update the scheduled time and notify the client with a new date.