Hi,
I have to write a book :
on the even pages at the bottom and on the left : the page number, a
vertical line and the number of the chapter preceded by the text "Chapter"
;
on the odd pages at the bottom and on the right : the title of the chapter,
a line vertical and page number.
Thanks for your help.
Fabrice

 \setupfootertexts
    [{\getmarking[chapter]}]
    [{\pagenumber}]
    [{\pagenumber}]
    [Chapter\space\pagenumber]

\starttext
\startchapter
  [title=First chapter]
  \dorecurse{10}{\input knuth}
\stopchapter
\startchapter
  [title=Second chapter]
  \dorecurse{10}{\input knuth}
\stopchapter
\stoptext

[image: pied_2.png]
[image: pied_1.png]