Just saw this and thought it might help out those that use the left hand for mouse control. You can't bind the keys yourself, you're stuck with the config the modder created but I would have definetly used it if I was still using my left hand to control my mouse. You don't need to do anything apart from installing 2mods, so fairly simple. And it works in all all instances, game, inventory and workshop...I sort of envie you guys a bit, now
http://www.nexusmods.com/fallout4/mods/2107/?
Else you got tuts from 2 other people but you need to work harder at it and install 3rd party freeware, but can bind to your hearts content:
http://www.gamesas.com/topic/1546356-workaround-for-hard-bound-keys-autohotkey-tutorial/
http://www.gamesas.com/topic/1544976-auto-hotkey-script-for-numberpad-users/