How To Add Upc / Ean / Jan Under The Sku

Hi there,



Just met a problem, i want to add the UPC / EAN / JAN code under the SKU number. Is there anyway to do that?



I tried the product-features, but it gives me a trouble when i import product in bulk. I can fill the UPC number directly.



I attach the image for your reference.



Thank you for your help indeed.



Additional information: i am using V4.15. Thank you!

UPC.jpg

UPC-product-feature.jpg

upc-bulk-upload-format.jpg