In your DAW software, set the DI track's Output setting to a Helix stereo USB Out other than USB Out 1/2.
If your DAW software provides options for routing individual audio tracks to outputs other than just the main Helix USB Out 1/2, then you can use these steps for re-amping a dry recorded DI track back through Helix.ġ.
These instructions are from page 46 of the Line6 manual from the section 'DI Recording and Re-amplification'. There is an illustration which I could not cut and paste that shows how to connect the Helix to your DAW and studio monitors:
