Hi,
I wish to have the table of contents as the attached image. The result is almost as expected except for the margin of the subsection.

 \setuplist
   [chapter,section,subsection]
   [width=fit,distance=\spaceamount]

 \setuplist
   [chapter]
   [alternative=b]

 \setuplist [chapter][style=bold]

 
 \setuplist [section]    [margin=1em]
 \setuplist [subsection] [margin=2.75em]

Thanks
Fabrice