[NTG-context] MPpage and single PDFs

Dear wizards, I was wondering whether there's a way to have ConTeXt spill out each \startMPpage … \stopMPpage it encounters as a separate PDF file … by default all MPpages seem to be collected into a single PDF file. Which is nice as long as this file is postprocessed by another ConTeXt document … however, I need to extract the individual figures from within LaTeX. So if anyone happens to know how to instruct LaTeX's graphicx package to do just that this would be a lovely alternative :-) Oliver