From the employee profile, select the green + icon on the right-hand side of the page, and choose whether you are adding a license or a certification. Follow the prompts, and once completed you receive a confirmation that the license or certification has been successfully added to the employee profile. You are then able to view the new license or certification from the employee profile under the Licenses/Certifications tab.
There isn’t a charge for additional licenses or certifications. Your subscription is based on the number of employees, not the number of licenses or certs.