Dear all, as said by the title of the e-mail, I try to put the page number in the middle (both vertically and horizontally) of the margin. I tried a custom command like
\def\mypagenumber#1{%
\vfill #1 \vfill
}
\setuppagenumbering{location=margin,command=\mypagenumber}

but, unfortunately, I got an error message on the \vfill. Is there a direct way to place my page number ?
Regards,

--
Flavien.
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"Quantum objects are completely crazy but, at least, they are all crazy in the same way." R.P. Feynman.