How do I make the caps lock key a third shift key?

How do I make the Caps Lock key a third Shift key?

• How do I make the Caps Lock key work just like another Shift key? There are loads of questions here about reassigning it, or having it launch a custom command. I just want it to work like another Shift key. I don't want any other keys to change what they do, just that one. Keyboard Layout/Caps Lock key behavior won't do it, I don't understand how to remap it in CCSM. I'm using a UK keyboard now but I learned to type on a US keyboard, the smaller left Shift key is DRIVING ME NUTS.

• Answer:

  You can get there by adapting http://askubuntu.com/questions/23491/how-to-change-capslock-key-to-produce-a (for example). Remove the Lock (= Caps Lock) modifier from the Caps Lock key, and declare that this key sends the Shift_L keysym. remove Lock = Caps_Lock keysym Caps_Lock = Shift_L Alternatively, you could remove the Lock modifier and add the Shift modifier. remove Lock = Caps_Lock add Shift = Caps_Lock Either way, these lines go into the file ~/.Xmodmap. Test by loading it with xmodmap ~/.Xmodmap; the file is read automatically when you log in under the default environment (or at least it was in the Gnome days).