% a neat example by wolfgang (response to question on list)

\unexpanded\def\Fleuron
  {\par % only shows up when there is one line space
   \leaders\vbox to \lineheight{MIDDLE OF THE PAGE}\vfil}

\setuplayout[lines=10]

\starttext

    \dorecurse {5}{Line \recurselevel\par} \Fleuron \page
    \dorecurse{10}{Line \recurselevel\par} \Fleuron \page
    \dorecurse {5}{Line \recurselevel\par} \Fleuron

\stoptext
