In recent versions (didn't test any other than the latest two betas, and only MkIV) the "3SIDE" imposition schema, written by Willi Egger in 2003, doesn’t work any more; the error says something about "the letter 6 is not a valid prefix". So I deleted "3SIDE" from http://wiki.contextgarden.net/Imposition - I can replace it with "XY" like this: My setup is: \definepapersize[filius][width=92mm, height=172mm] \setuppapersize [filius][A4,landscape] \setuppaper [nx=3, ny=1, dx=0mm, dy=0mm, topspace=19mm, backspace=10.5mm] \setuplayout [page] [topspace=19mm, backspace=10.5mm, location=middle, marking=on] \setuparranging [XY] For the records: You need to call \setuppaper[nx=3,ny=1] *before* \setuparranging[XY] ! Remaining problem (and difference to "3SIDE"): I don’t get cut marks *between* those imposed pages, only the outer ones appear. Can I change that, and how? Here's usable test setup: \setuppapersize [A7][A4,landscape] \setuppagenumbering [alternative=doublesided,location=footer] \setuplayout [margin=0pt,width=fit] \setupbackgrounds [text][text][background=screen,backgroundscreen=0.7] %\setupcolors [state=start] \setuplayout [location=middle,marking=on] \setuppaper[nx=4, ny=2] \setuparranging [XY] \def\Style{[XY 4*2]} \startbuffer[Fakepage] \strut \blank[force] \midaligned{\Style} \vfill \midaligned{This is page \recurselevel} \vfill \stopbuffer \setupheadertexts[\CONTEXT] \starttext % \showframe \dorecurse{16}{\getbuffer[Fakepage]\page} \stoptext Greetlings from Lake Constance! Hraban --- http://www.fiee.net/texnique/ http://wiki.contextgarden.net https://www.cacert.org (I'm an assurer)