If you ordered multiple scanners, you do not have to configure the scanners one by one.
Just configure one scanner first and then scan and configure it with the remaining devices.
1. Configure the first scanner and click on the QR code - Scanner Config in the keyboard emulator.
2. You will then see the configuration information QR code.
3. Finally, use the remaining scanner to open the keyboard emulator to scan that QR code and you're done.
If you have any questions please feel free to contact me.