positioning layers again

["Eckhart Guthöhrlein" <eckhart.guthoehrlein@uni-bielefeld.de>]

Hi all,

I have managed to create my poster, arranging stuff on the page using
layers. But I have to admit that I have used hard-coded coordinates for
all layers. (I used a metapost grid in the background for measuring and
aligning in the draft version.) If anybody is interested, I can make the
poster and the source available online after the conference.
I don't want to be nerving, but to make things easier in the future, I
would like to repeat my question: How to position layers relative to
each other, not relative to a common coordinate origin? (So that you
don't have to move subsequent layers if some box changes its height
etc.)
I have experimented a bit with the stuff in the 'positional graphics'
chapter of the metafun manual, but didn't make it. So, thanks for hints
and suggestions.

Regards,
-- 
Eckhart