OP-1 can be used as a dedicated control surface for Ableton Live. here's how to set it up:
- download and install the OP–1 ableton live script, found here.
- once installed, choose OP–1 as control surface under the midi/sync tab in live’s preferences.
make sure OP-1 midi device is selected for both input and output.
- press shift + com on OP–1 and enter ctrl mode using T2.
for more information, please see the user guide.