This is my current setup:
Stage Piano & other instruments ->[analog XLR] -> Digital Mixer ->[s/PDIF]-> Helix ->[uSB]-> PC
Essentially I am using my Helix as an audio interface (obviously on top of guitar FX, guitar input is not shown there but it's connected straight to the helix).
I am NOT using the S/PDIF input as a guitar input, the guitar is connected to the Helix 1/4 jack.
Essentially I am using the S/PDIF input as an extra input that I just want to route to another USB pair (say 3/4).
Now, I can make all this work within a given preset, by setting the routing as follows:
(Guitar IN) -> Amp & FX Chain -> (Multi out, USB 1/2)
(S/PDIF IN) -> (No FX on this chain) -> (USB 3/4)
This works great, there is only a major drawback: I have to repeat this pattern in all my presets, which is extremely tedious and inconvenient.
What I would like instead is a global routing assignment (similar to what is possible to do today for the analog headphones out in the global settings). Regardless of the current preset I would like S/PDIF in to always be routed to USB 3/4 (or 5/6). Clearly I would be totally fine if doing that would remove the S/PDIF from the list of inputs for a preset (there is already precent for this when using the Variax input).
I think that, in the current firmware, this is just not possible (but I am happy to be proven wrong). So I think this is more a feature request for the next firmware. Line 6 folks, does it sound reasonable?