put the channels in event and this is an EG

alias aop {
  if $istok(on.off,$1,46) {
    set %aop $1
    echo -a Aop is now $1
  }
}
on @!*:join:#channel1,#channel2,#channel3,#channel4#channelN:{
  if (%aop == on) && (!$istok(Nick1,Nick2,Nick3,Nick4,$nick,44)) { mode # +o $nick }
}