[NTG-context] \setuphead and testpage

Hi Hans, can you add a testpage option to \setuphead? %\setuphead[section][testpage=4] \setuphead[section][before={\testpage[4]\blank[2*big]}] \starttext \section{First} \dorecurse{36}{Line \recurselevel\par} \section{Second} \dorecurse{36}{Line \recurselevel\par} \stoptext Wolfgang