[NTG-context] Framedtext left/right offset?

[Ehrt, Michael]

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