How Can I add a skill to an existing item?

[sirburton]

Hi guys
It's simple: I'm using longwar2 and I want the rage suit to enable the skill untouchable for who wears it. How can I make it happen?
I think I should simply edit a script file in LW2 folder. Can anyone tell me whjat to add ?

Or, if editing rage is too tricky, how can I add a new craftable item, for example a new chrissalis skin plate that gives the standard +4 but also add the skill untouchable?