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* Sorry Vianney, I don't understand how it works your code. Please can you *>>* type *>>* some lines more? Something with *> Even simpler than before, using your example:

\setuplayout[% default layout for all the pages backspace=1cm, width=middle]

\definelayout[1][% set this layout on the first page backspace=6cm]

\definelayout[2][reset] % reset to the default layout starting from the second page

\starttext \showframe \dorecurse{20}{\input dawkins \par \input knuth \par} \stoptext

Vianney

It works like a charm! Many thanks. Sam Qasbah