The biggest change was not in RobotStudio, it was in RobotWare after version 6.
In the past there was additional options to add more features to the system, now ABB changed to rpk package system.
The old one was a folder which you have to copy to the mediapool, the new one is a compressed file that you have to install from RobotStudio addin tab. In the old system was possible to copy the folder from inside robot flash, in the new one it's not possible. And also with the old one it was possible to change files inside, the new one is checked against tampering.
So this PRDM is an additional package for RobotWare 6, to create this system you have to get this package from the creator.
I was certain that the name prdm was not strange to me. It's the ifwc, a framework used in Ford powertrain plants. I have it here, but for copyright issues I can't share it here, so you have to ask your customer or ABB US about it.