Hi. Many thanks for your kind answer.
\setuppagenumbering[alternative=doublesided, location={header,marginedge}] \setupheadertexts [section][{\headnumber[section]}][chapter][{\headnumber[chapter]}]
Your code is rather nice (I have learned one nice trick from it), but it doesn't what I need. I want all the header stuff to go just separated by spaces, not on different sides of the header. Something like this 117_This_is_an_chapter_name_(chap._5)___________________________________________________________________ where "_" stands for a space. Well, with your trick I could possibly to it with some \hfill, but it's a rather tricky solution. Moreover, I may need the name of a current chapter and section in the document itself. I guess there must be some system solution for such a case in the ConTeXt (I think there is almost everything in it.) :-) Of course, as the last instance I can redefine \chapter and \section in a way like this \let\OriChapter=\chapter \def\chapter#1{\def\currentchaptername{#1}\chapter{#1}} but I don't want to do it -- it is dirty and involves more programming to cover crossreferences. Any more hint how to get the name of current chapter/section? With best regards Michal Kvasnicka