1 main company with different sales channel. Shopify and Amazon.

Shopify is being categorized under sales (general) with COGs and expenses as well. Which I can edit name to designated shopify so it's broken down

As for Amazon, when I import the sales and expenses, do I create a sub account under SALES AND COGS or do I create a new account for Sales: Amazon and COGs: Amazon. Does it matter?

As for the company, as a whole, I buy from same vendor SKU ABC-CUPS-1000 and ABC-LIDS-1000. These two SKU I use for website. Now with amazon, these SKU, SKU ABC-CUPS-1000 and ABC-LIDS-1000, gives me a Amazon SKU: AMZ-CUPSLIDS-100 x 10. So basically buying these two SKU from the vendor gives me 10 sets of 100 for Amazon. How would I record this in QBD?

Right now I have ABC-CUPS-1000 and ABC-LIDS-1000 set up to be Sales and COGS for Shopify. Would I be able to also set it up for amazon?