If I create a fretboard with an Em pentatonic pattern and then overlay a C#m pentatonic pattern over it, it would be very handy to be able to select multiple notes for coloring. E.g. right click on C# then select "Select all C#s" and then Ctrl-click on F# then right-click on it. It would be very nice if there was a menu item "Also select all F#s" so that I could change the properties of multiple pitch classes in one shot as opposed to having to do the same operations on each pitch class sequentially.
This brings to mind another "nice to have". I'd really like to be able to use smaller Note Markers on certain notes--like the F#s and C#s for aestetic reasons.
One more item If I right click on a flet with no marker (let's say it's a G note), I'd like to be able to have a menu item that says "Add marker to all Gs".
Thanks for considering these features.