I ordered a generic wireless 5 button mouse. I would like to assign the left side button under my thumb to replicate the keyboard ESCAPE key. I would like this assigned fey to take me out of FULL SCREEN in order to see the system tray. I will be doing this from across the room. I will also be using the mouse in its normal manner closing pop ups and other boxes that interfere with the main content. How do I do this? Are the steps mouse specific?