Shortcut keys can be the following:
0 thru 9
A thru Z
F1 thru F12
+ , . / = ;

There may be a few more...
 


Also, prefixes to the above may be used:
Alt+
Ctrl+
Ctrl+Alt+
Ctrl+Shift+
Shift+

Combinations of the above make for a very large number of possible shortcut keys.

Great for the 6 Nudge scripts:
PageUp
PageDown
UpArrow
DownArrow
LeftArrow
RightArrow

There may be a few combinations which do not work, or are already spoken for....

- Brian

(My choices are still unrefined.)

A few configurations have been posted in the past.

What, if any, are examples of the ultimate configuration???