Changing Octave in Chord Edit Mode

What is this + and - link for? It doesn’t seem to do anything in my Scaler 2.4 in Bitwig 4.0

I had assumed it would change the octave of the offered chord selection. But neither that, nor the selected chord in my custom chord pads on the bottom. Nor does it change the octave of chords selected from the wheel of fifths.

What am I missing?

UPDATE: (5 minutes after posing the question)… I had “Voice Grouping” on in the top menu. A big no-no apparently :wink:

When Voice Grouping is on, it overrides any custom inversion or octave choices in chord edit mode. Even though the semitone +/- still work.