I take a Y cable from the midi out. One side goes to the Strymon Big Sky and changes patches for me, either by a patch change on Helix or a snapshot on Helix. The other midi cable goes to my iPad interface and foot switches on Helix operate record, toggle and clear on the looper app I use. Midi channel 1 goes to iPad and channel 2 to Big Sky. So useful
I also use a neat trick to play different steps of harmony on the Dual Pitch on Helix. I have setup four foot switches to change the harmony to 4th, 5th, 7th and 9th. Just play one note with the Ebow and hey presto.