Favorite Groups each have a QR code. These QR codes allow you to easy select all the students in the Group for use when sending coins or other things. This is useful for quickly selecting all students in a group that you have created.
To locate your QR code for a Favorite Group, click the QR code icon next to it's name. This will open a printable PDF of the QR Code.
To use a Favorite Group QR Code, from the "Choose Recipients" view, click the "Scan QR Code" button to scan your printout with your phone. After scanning, all the students in the Favorite Group will be added to the current selection.