In order for an administrator to register a card, one can either do this:
The administrator requires a USB Card Reader connected to their device (computer). Once the USB Card Reader is connected, the administrator can open the Register Card Menu and scan their card to fill in the value.
The administrator can also input the number of the card by typing it in manually.
However, Scan2x on devices is integrated with uniFlow. Thus, any cards that are not directly registered with Scan2x are instead registered to authenticate with uniFlow.