There are the two best methods of changing the binding of any key on your keboard, button on your mouse or even headphones and other devices.

AHK remapping: https://autohotkey.com/docs/misc/Remap.htm
Sharp Keys: https://sharpkeys.codeplex.com/

AHK allows you to remap myouse buttons and keyboard keys.
SharpKeys allows you to rempa headphone buttons and keyboard keys.

Both can also be combined for even more customization.
Both programs are 100% free.

Allows you to change keys into other keys or buttons.
http://hackerbot.net/

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