...one for the default shortcuts, one for the changed shortcuts.
After resetting the preferences (maybe by accident), it might be helpful to have (and backup regularly, of course) a list of all the shortcuts you changed. Just to have a clue, if these individual shortcuts are being used in AHK/KMS to automate some features.
Providing a standard list for Mac, Windows and Linux (somewhere in the 'Solutions') is another idea and just some keystrokes away from this feature.
I have stopped customising my keyboard shortcuts altogether :).
Torsten: Display keyboard shortcuts with 2 columns...
I use CheatSheet for the Mac, $free. You can save the result as a PDF. It doesn't show the changes you made, but you can compare them with a PDF compare app.