1. Select an instrument for the chord track to play 2. Create an audio track with the same input as the Chord Track 3. Make sure Play Track is and Audition Chords is selected 4. Create your chord progression in the chord track
Hit record and let the audio track capture what is being played back by the Chord Track.
Add Melodyne to the audio file and set to polyphonic detection.
Drag and drop the audio clip to an instrument track to convert the audio to midi. Now you just converted the chord track into midi.
Studio One Pro 6.5.1 64 bit, macOS Monterey 12.6, 14" MacBook Pro M1 (2021),16gb ram, 512 SSD, 8-core CPU