The AuthAnvil uses both "slots" on the YubiKey, one to generate the one-time password and the other to store the serial number, so the YubiKey cannot be used for any other product at the same time.
Questions?
If you have any questions or need some help, we would be happy to assist. Open a case at help.scorpionsoft.com or send an email to support@scorpionsoft.com.