Hello list, Looks like lmtx adds extra vertical space after heads. Compare those two MWE: \setuppapersize [S4] \setuphead [subject] [after={}] \starttext \startsubject[title={blabla}] \input knuth \stopsubject \stoptext \setuppapersize [S4] \setuphead [subject] [after={}] \starttext \startcolumns [n=3] \startsubject[title={blabla}] \input knuth \stopsubject \stopcolumns \stoptext Greetings, Damien Thiriet (missing BachoTeX)