[NTG-context] Asymptote in Context

I have been trying to put Asymptote graphs in Context with the filter example below. The Asymptote graph is written in a separate PDF file, but is not included in the final completed PDF document. Is there a simple way to achieve this? \usemodule[filter] \defineexternalfilter [ASY] [filtercommand={asy -tex "context" -View -outformat pdf -outname \externalfilteroutputfile\space \externalfilterinputfile}, output=\externalfilterbasefile.out, readcommand=\typefile, cache=force, location=text, continue=yes] \starttext \startASY[myplot] draw((1,1)--(2,4)); \stopASY \externalfigure[myplot] \stoptext Thanks Jeroen