Just add a popup somewhere in there like this

Menu Channel,Server {
LoL Script
.Turn on { set %lol.script on }
.Turn off { set %lol.script off }
}

then at the beginning of the on *:INPUT: make it like this

on :input::{
if (!%lol.script) && (%lol.script = off) { halt }
IF ($1 == lol) { /say 12L4augh 12O4ut 12L4oud $2- }