Try the keybindings dialog and enter e.g. 'macos-show-colors' as command. The assoc. key binding (even on my Windows machine) is Shift-Command-C which in turn is listed as 'S-M-C' in keydefs.e (generated by list-keydefs).
So the 'command' key is 'M' in the event tables. A search'n replace of all 'A' -> 'M' and a re-load of keydefs.e should do the rebind job quite fast.
Good luck,
HS2