I reported this some days ago, but it was a rather short report, which might explain why nobody has reacted upon it yet. So this time I'll go into greater detail:
The grid system in columnsets works very well until the moment you include a multiline equation somewhere. This causes the entire rest of the page to be out of alignment with the grid. Try running this code with MkIV: \setuplayout [grid=yes] \setupindenting[yes,medium] \definecolumnset[example][n=2] \setupformulas[indentnext=auto] \starttext \showgrid \startcolumnset[example] \input knuth \input knuth \input knuth \startformula \startmathalignment \NC x^2 + y^2 \NC = z^2\NR[+] \NC u^2 + v^2 \NC = w^2\NR[+] \stopmathalignment \stopformula \input knuth \input knuth \input knuth \stopcolumnset \stoptext A picture of the result can be found in this question on TeX.SE <http://tex.stackexchange.com/questions/254815/grid-on-aligned-equations-in-context?noredirect=1#comment613211_254815> .
___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________