> Am 22.12.2014 um 23:00 schrieb Andrea Valle <valle@di.unito.it>:
> 
> Dear, 
> 
> sorry for the dumb question.
> 
> how do I increase text height by reducing the space under footer without changing the other ones?
> I’m a bit confused by the discussion on setuplayout

You have to change only the value of the height key.

%%%% begin example
\showframe

\starttext

\input knuth

\page

\setuplayout[height=10cm]

\input knuth

\page

\setuplayout[height=22cm]

\input knuth

\stoptext
%%%% end example

Wolfgang