I have found the other posts on how to config the MIDI tracks on the Digitakt to transmit NRPN messages via 3 (or 4) of the CC numbers.
I set the Digitakt up in the manner @void recommends on the other posts about this topic per below.
Where I am running into problems is on how to interpret the NRPN table that Sequential provides for the various program parameters.
Here’s an image of the table from the Prophet-6 manual.