Digitone Audio Routing as Interface Help

I have an Octatrack and the digitone and I’m currently using the digitone as my audio interface as well. Sometimes I want to sample the digitone into the octatrack to further mangle the sounds and other times I just want the digitone to play alongside the octatrack which I currently have set as master so I only need to use the Octatrack’s sequencer. At the moment If I want to sample something from the digitone, I have to move my headphones over to the Octatrack’s output, connect TRS cables from the digitone’s main outputs to the a/b input on the octatrack and pull the cables from the digitone’s inputs or turn the inputs all the way down on the digitone.

What I would like to be able to do is to only send the digitone’s 4 tracks out of the physical outputs and mute them over USB so that I only hear whatever I have running through the inputs on the Digitone’s headphone output. I’m not sure if this is even possible but it’s a pain in the ass to have to swap a bunch of cables around everytime I want to sample something.