alias away {
  amsg 10[7Global10] I am away. Reason:7 $1- $+ 10. Time left:7 $time
  set %ctime $ctime 
  set %reason $1-
}

alias back {
  amsg 10[7Global10] I am back from7 %reason $+ 10. Time spent away:7 $duration($calc($ctime - %ctime)) $+ 10.
  unset %ctime
  unset %reason
}