How can I combine in the footer the chapternumber and the chaptertitle in the footer. This way I can achieve the chaptertitle
\setupfootertexts
[chapter]
[\pagenumber]
\starttext
\input{tufte}
\stoptext
The following I achieve this with the chapternumber
\setupfootertexts
[chapternumber]
[\pagenumber]
\starttext
\input{tufte}
\stoptext