Show chords, used in composition, and guitar chord schemes

[lex-kravetski]

It would be nice, if you add these features.

1. Table of chords, that already used in composition: their names, piano schemes, colors (like in nowday Chord Selector).

2. Similar tab in Chord Selector for quick adding repeating chords (now it can be saved in chord sequence, but it is not usable for sequence variations).

3. Standard guitar chord schemes in Used Chords Table and in Chord Selector.

[musicdevelopments]

Thank you! I added all these to my to-do list.
Attila