Support Mac native key reassignment

[sanguish]

This may also be available on Windows, unsure.

I've been attempting to map one of the extra mouse buttons I have to "esc" so that I can stop what I'm doing and move onto something else without hitting the keyboard.

This has proven nearly impossible. Being able to change these menu items to something that is more of my workflow work would be a major improvement.

[daniel_lyall]

Depending on your mouse brand you have to do it in there program, Fusion may have this one day sooner the better I say

[sanguish]

Yes, and I have a Logitech mouse that allows that, but NOT the stupid escape key. 

I've tried combinations of other apps, but no such luck.