Edit Chord question

I tend to edit chords away from a piano or midi controller. I have been using the edit chords function and had a few questions about that speciically.

  1. Can i make it so touching the notes in the chord doesnt remove the note from the chord unless i press a hotkey? I often just want to hear the note, not remove it or add it. is there a short cut key for this?
  2. Can i remove the blue tabs from the front of the keys?
  3. Can i change the keys from being light grey to something darker or maybe color? My brain just isnt dilineating the light grey and white.