oz -- option sleep (zzzz's)

        default range           syntax
          1,$                     oz

        If you are running "sh", this option has absolutely no effect at
        all.  If you are running the "csh", this option will suspend  se
        in the background.  Se will issue  a warning  if  the buffer has
        not been saved, when this is done.

        For general information about the option command, type "ho".