How do you get autotype for runescape?

I want to be able to repeat lines in Runescape so I don't always have to retype them. Although I do know that you can use Limewire or Ares to get autotype. I prefer Limewire, but how does that give me autotype. On Limewire it doesn't say anywhere how to get it or anything. So how can you use Limewire to get autotype, please help???