How do I turn off f5 - shader complexity shortcut

I need all the F keys for my new project. But when i press f5, along with the function i gave it, it also messes everything up by turning the shader complexity mode on. How do i unlink the shortcut for that?

I believe the only way would be to go in and change it in the engine source code. Other than doing that why not use the number keys 1-9 instead of the function keys, at least with the number keys you don’t have to worry about any preexisting functions assigned to them.

thanks… but i need 12 different keys, for 12 different functions of my app. there are only 10 numbers.