I just wanted to share this Ableton session template I created that allows you to send and record MIDI to and from the OP-Z. It also has some custom drum racks that I mapped out for OP-Z tracks 1-4 that allow you to use Ableton Push to play notes and drums on each track. I hope this is helpful to people here.
Link to Ableton + OP-Z session file template.
I also created a couple of YouTube videos to explain how to use it.
Here’s a video on how to record your tracks from the OP-Z into Ableton Live
Another video that explains how to control the OP-Z from Ableton
For this to work, you will need to make sure to have tracks 1-8 on the OP-Z mapped to MIDI channels in sequence as 1-8.