Something

menu Nicklist {
  Notice
  .Start a new conversation with $1:/set %nick $1 | new-convo
}
alias -l new-convo  {   
  hadd -m notices $hget(notices,0).item %nick
  hadd -m notices current %nick
  $iif(!$hget(notices. [ $+ [ $hget(notices,current) ] ]),hmake notices. [ $+ [ $hget(notices,current) ] ] 100)
  did -ra nthing 2 Conversation with $hget(notices,current)
  did -a nthing 4 %nick
  dialog -v nthing
  unset %nick
}