Using Rytm/Digitakt as sound cards with external FX boxes? Routing questions for Ableton

Hey there, OB spec mentions using these instruments as “2 in 2 out sound cards”, and i’d love to use each of my boxes to handle the stereo in and out of an OTO BIM/BAM.

Is there a simple guide to configuring Overbridge with Ableton’s external FX module, where I could add JUST the inputs and outputs to a track and not any of the instruments’ internal tracks?

Am I over complicating this perhaps, or is this design inoptimal to be used as a FX loop? It’d be really nice to have the extra 4i/o ports for my studio :slight_smile:

Thank you!