[NTG-context] Adjust width of section part of table of contents

The following is a setuplist for the table of contents. Is there a way to have the section part only go to 80% of the page width, similar to width=0.8\textwidth \setuplist [chapter] [style={\bf}] \setuplist [section] [style={\tfx}] \setuplist [chapter,section] [headnumber=no] \setuplist [section] [alternative=d] \placecontent