Curiosity got the better of me and I did some diagnostics on the patch cables using Cubase's midi monitor. Despite the MS20 main controls being midi CC, the jacks seem to use NRPN, one set of numbers for a single jack plug / unplug, and two sets together when there is a connection between two jacks. This seems to be the pattern FWIW:Echoes in the Attic wrote: ↑Fri Jan 25, 2019 6:14 am I wonder if all the cable connections create the equivalent modulations in Omni? I never foudn out how they could send midi signals.
NRPN MSB - 99 4 (99 is common to all, 4 is plugged in, 5 is unplug)
NRPN LSB - 98 X (98 is common to all, X is the ID of the jack)
DatEnd MSB - 6 Y (6 is common to all, Y is the paired ID I think)
All of which hopefully means that, though the above was undocumented in the manual, Spectrasonics will have been able to translate that into Omnispeak. It would have to scan for that NRPN range, look for pairs using the paired ID and then allocate the jack numbers to the Omni equivalents. They do modulation for other synths, but admittedly those are more preset options rather than jackfields. Nice to know its at least theoretically possible, anyway.