Gift Card Balance Check Tile in Shopify POS

I want my store staff to check a Giftnote gift card balance from a tile on the Shopify POS home screen. They tap the tile, scan the card (or type the code), and see the balance straight away, without starting a sale.

Our store staff only have POS access, not Shopify admin, so the balance check has to live inside POS. This would speed things up at the counter, especially in peak.