This was achieving using AutoHotKey: https://autohotkey.com/ To use this script simply: 1) Right click your desktop, click New - AutoHotKey Script 2) Open this link for the code: http://pastebin.com/raw/0AB106Ai 3) Paste the code into the file and save it 4) Double click it to run! Note: the script is set up with [C] as the toggle key and [V] as the fire key; you will probably have to change a couple lines of code if your fire key is different, or you can just rebind your fire key to [V].