GJFO

Hello, The SquareSpace shop is working fine. I have create a Google Merchant Account. I let Google to scam the products. All products are recorded by Google. But only one variant is taken by Google on some products. For instance In the shop I display 3 sizes of an artwork. Each one have a different price. In Google Merchant only the first on (smalest one) is display. I do not need to feed Merchant account with a Google Sheet because only few products have a different sizes and different prices. Is there a way to add manually these different sizes and prices directly in the Merchant Account or if I have to creat manually these variants as a new produt for each size? Thanl you GJ