[NTG-context] Changing page number location for chapters

I have set up page numbering in the header thus: \setuppagenumbering[alternative=doublesided,location={header,margin}] I have suppressed this page number for chapters thus: \setuphead[chapter][page=right,header=empty] But what I really want is the page number for chapters in the footer, and centered. This is a common convention. What parameter should I use in the \setuphead command to accomplish this? -- John Culleton Free list of books for self-publishers: http://wexfordpress.net/shortlist.html Police Procedural and Expose: "Death Wore Black" "Create Book Covers with Scribus" http://www.booklocker.com/books/4055.html