Sku and 1 option missed

I have a premium plugin, “Import Shopify to WooCommerce,” but when I attempt to import the Shopify CSV file into my WooCommerce store, I encounter issues with the SKU and the “Talla” (size) option, as they are missing. Additionally, I’m interested in learning how to import metafields. I’m having trouble locating the “Settings/Import Products” options to add the barcode as a metafield. Can you provide guidance?