How do I get KeyCode.Mouse3…KeyCode.Mouse6 to work? I’ve found only a few post but no answers.
Strange that these are included in KeyCode but doesn’t seem to work and the documentation isn’t very helpful.
KeyCode.Mouse3
description:
Fourth mouse button.
I think you’re looking at the wrong bit of the documentation, you want “input” not “keycode” 
put them into the bottom example on
No, you didn’t understand the question. The answer is that you use them as normal, and if you have a mouse with enough buttons, and the buttons aren’t being redirected by a utility to do something else other than standard mouse clicks, it works fine. At least it does on a Mac with a Logitech G400s (5 buttons); Mouse3 and Mouse4 are the side thumb buttons.
–Eric