Hi Charles,
On the Uhlenbrock website, it says:?The 74120 Decoder replaces the existing Decoder 76425 with NEM 652 plug.
That one happens to be in JMRI, and IntelliDrive2 I added for other models last Spring.
If you can send me the CV tables for this decoder (by Private message, use the button below on the groups.io web interface), I will check if I can work something out for you next month.
Egbert
Egbert Broerse