I have installed Kubuntu and I would like to map my Fn keys too.
Do you think that you can explain to me how you did that? I have found the input entry but I don't know how you did what you did lol.
I created a "new global shortcut" (sorry if it's not exaclty the write word, I don't use english langage) and mapped CTRL+ALT+SHIFT+W for exemple but I don't know what I've to do after that.
It's really too bad that the Voria's wonderful script doesn't work on Kubuntu.
PS: Sorry for my bad english, I hope that you understand me well.
PS2: If you have some tips to increase the reactivity of the system, I take it!:D