Disable Certain Keyboard Shortcuts

I found some great source code from a website (https://www.rondebruin.nl/win/s4/win012.htm) that enables you to disable the user's ability to use keyboard shortcuts. I've used the blocks of code that disable/enable all keyboard shortcuts — not just ones that are listed.

I'd like to adapt the code so that I can disable all keyboard shortcuts, but still list any exemptions at the bottom. So for example, the following will block all attempted keyboard shortcuts, but how can I allow Ctrl + X, Ctrl + C, Ctrl + V and any others to be exempt?

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Perhaps this

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I would suggest you simply disable everything and then use the array method to re-enable just the ones you want.