Hi there, in the following sample, all lines are in a line numbering environment, but only those without margin data get actually numbered. \definemargindata[mgch] \setupmargindata[mgch][location=outer] \starttext \startlinenumbering \dorecurse{10}{\mgch[margin]unnumbered lines } \dorecurse{10}{numbered lines } \stoplinenumbering \stoptext It doesn't work either with latest stable or beta versions. Am I missing something here? Thanks for your help, Pablo -- http://www.oudeis.tk