[NTG-context] Framedtext left/right offset?

Hi, Is there a way to have \startcolumnsetspan[intro] \startframedtext[frame=off,bottomframe=on,topframe=on,offset=1ex] \it Some introduction text here \stopframedtext \stopcolumnsetspan without the offset to the left and right? There's no frame drawn to the left and right so I don't want the offset there. Since I couldn't find a way to get rid of the offset I'm currently using \startcolumnsetspan[intro] \hrule\vskip1ex \it \input knuth \vskip1ex\hrule\crlf \stopcolumnsetspan I know that the use of \vskip is not recommended (according to the manual), but this is the only way I found... Cheers Michael