How to programmatically create a hotkey from the key the user has pressed?

[msimic]

I would like to offer the user a dialog to press a combination of keys and remember them as a hotkey shortcut for future use.

What I am looking for is something like this:

var pressedCodes = hotkeys.getPressedKeyCodes()
var newHotkey = convertCodesToHotkeyDefinition(pressedCodes)

hotkeys(newHotkey, function(){
  // user used the shortcut he created
})

Obviously, I don't know how to generate the hotkey from the array of pressed codes (my convertCodesToHotkeyDefinition).
Is there a function in hotkeys-js to do that or somebody knows how to do it?

Regards

[msimic]

No news here? Without this, the library is limited to only static shortcuts.
No way to give the user the ability to assign their own shortcuts... (and no, having him fill a textbox with the string for the shortcut is not an option - not user friendly).