Tap the navigation button on the top left side of the screen, then "QR Code & Barcode".
On this page there are two tabs. The tab is located at the bottom of the screen. On the first tab, you will see the QR Code, used for Visitor Scan in front of the School's Lobby
On the second tab, you will see Barcode from student's NIS, that can be used to borrow books at the library