I have tried all of the keyboard layouts for BT4 and I can not get the 'pipe' key or otherwise known as the 'greaterbar' key to work. The only way I've found it to work is by typing this into the terminal every time I logon:

xmodmap -e "keycode 94 = greater bar"

Does anyone know how I can automate this process or even if there's something I'm missing? Thank you.