How to remap the Ctrl+F1 shortcut

How do I remap the Ctrl+F1 keyboard shortcut so that I can use Ctrl+F1 as an in-game command while coding/testing? Or how can I disable and re-enable it on the fly?

I've found some things that sounds similar but aren't, and so I'll clarify that I'm not trying to use Ctrl+F1 for some script. I'm trying to disable the default operation of Ctrl+F1, and if possible I'd like to define a shortcut that keeps that same functionality but just with a different shortcut.

I'm using Windows and running Unity 5.3.1f1