Will be great for musicians and producers to see the chords in the big counter, specially in recording session situations. I've seen this option in old softwares of big mix consoles.
Important: An option for MIDI chord recognition, and send them directly to the chord rule. AVID Sibelius is the best example for this option.
The transpose function in 'Event Operations' does not work on the Chord Symbols in the chords-ruler. So when you transpose a song, you have to delete all the chords in the ruler and input them again in the new key.
Also: the Chord Input-System is very unpractical - Sibelius has an amazing Chord-Symbol-Input System, which would be great to have in ProTools.