Hi Pablo,
Dealing with the sample you has given to Mikael I find a difficulty on page 2 : if you replace 'Foo' and 'Bar' (three letters), by 'Introduction' and 'section', see what happen to 'section', page 2.
Here is your MWE :
\showframe
\setuppagenumbering[alternative=doublesided]
\definemargindata[margintext:chapter]
[margintext]
[width=\rightmarginwidth, location=outer, align=flushleft]
\defineheadalternative
[margintext:chapter]
[margintext]
[margintext=margintext:chapter]
\definemargindata[margintext:section]
[margintext]
[width=\leftmarginwidth, location=inner]
\defineheadalternative
[margintext:section]
[margintext]
[margintext=margintext:section]
\setuphead[chapter]
[alternative=margintext:chapter, style=\tf, number=no]
\setuphead[section]
[alternative=margintext, style=\tf, number=no]
\starttext
\chapter{Introduction}
\dorecurse{15}{\section{Section}\input ward\par}
\stoptext
----- Mail original -----
De: "Mikael P. Sundqvist"
Am 2017-08-02 um 19:28 schrieb Mikael P. Sundqvist
: I do not want to change the output of the chapters/sections themself.
I want to have a "running header", but in the margin rather than in the header. I get that with the code I gave, but I want to disable it for new chapters _on the page where the chapter begins_.
I guess this is a case for setups.
\startsetups[chapterpage] \setupheadertexts[][][][] \stopsetups
\setuphead[chapter][setup=chapterpage]
Something like this, I didn’t check.
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Thank you for your answer, Henning. I am sorry, but it does not work. The problem is that I don't have the marking text in the header, but in overlays in the margins. I tried to replace your \setupheadertexts[][][][] inside the setup with \setupbackgrounds[text][rightmargin][background=] but with no luck. But maybe you are right that one should use setups. /Mikael ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________