Selecting another other Track displays all the chords in the progression in the Midi Editor. Selecting the Main Track highlights only the first chord. Further more even if I select all the chords in the Main Track and they appear in the midi editor, if I highlight one of the other tracks for editing and return to the Main, I have to go through the whole chord selection process again. The best behaviour for quick midi editing is for all chords to be highlighted on each track. If thats the default behaviour, once the Playbar is visible in the Midi Editor, editing midi will be much faster/simpler.
Mac Studio M2 Sonoma Ableton Live 12.1 using VST3