How do you change and/or disable the keybinding?

I can't figure out how you are supposed to change the key binding.

I have several formatters installed, and right now, it seems that this particular one has won somehow, and it seems to be applied when I press ctrl+alt+f no matter what the file type (C++ becomes really interesting when fed through the SQL formatter, incidentally).

How can I change (or preferably disable) the shortcut key?