How'd they do that?: Unity FPS Tutorial Question

Hello,
I recently downloaded the FPS project folder from the website, borke it down and studied it quite a bit.

The one thing I couldnt figure out “Where” and “in what script” the button “ESCAPE” is called to trigger the Pause function and Pause the game. I cant seem to find anything similar to “input.key"escape”. I would appreciate any help and I apologize if this is a very newbie question.

Thanks

I’m not sure what script it would be in, but search for Input.GetKeyDown or possibly Input.GetButtonDown

Thanks for the tip, do you need to declare a certain key to be used or is ESCAPE usually a default of some sort?