You are correct, the class on May 13 is available to take online (it is instructor led, so it is the same as a regular class, just that the attendees are all remote). You can pay via a credit card, simply click the register link on the Training.OnBase.com site next to the class you want to attend, there is a payment portion in which you can fill in credit card information or purchase order information.
In regards to the Unity Integration API license, there are two licenses available that leverage Unity API. The Unity Integration Toolkit license, which is used for writing external applications that integrate with OnBase, and the Unity Automation API license, which is used for writing "scripts" that execute inside of OnBase using the Unity API (like Workflow scripts, WorkView scripts). To purchase the Unity Integration Toolkit you should contact your account manager. For the Unity Automation API license, this is enabled upon completion of your API Certification, at which time a new license certificate would be generated and sent to you.
