menu Channel { 
  Away System
  .Away:/away $$?="Reason?"
  .Back:/back
}
alias away { 
  set %away $1-
  /ame 5,0:::: 14[ 1I'm now away, REASON: %away 14] 5:::: 
  /nick Kenny[mIRC_Away]
}
alias back {
  /msg 5,0:::: 14[ 1I'm now back from: %away 14] 5::::
  /nick Kenny[mIRC]
  unset %away
}