I am just going to make P for Pause and while in editor I have UI buttons to use the mouse. But I am going to make the UI navigational for users be able to use the limitation Keys to navigate as well. so basically (A) = up, (X) = down, (Space) = Submit. or something like that. Just so that way I'm only using those keys. I read earlier that there are no exceptions. But you can also code in (if(inEditor){do what ever you want} then when you go to play it on web or on client it wont' run those lines of code.