Two concurrent situations can happen, which I'd like to typeset as two parallel columns while keeping the overall page layout (i.e., headers, footers, margins, and such). current version: 2023.07.18 22:07 I'd like to find a way to set up start/stop environments, if possible, to come up with a general-purpose solution (i.e., the prose itself is not changed). Here are a few examples. In the first, a "concurrent" environment is created with two "timelines": % SOT \definestartstop[concurrent][ before={\startcolumns[n=2, align={verytolerant,stretch}, separator=rule]}, after=\stopcolumns, ] \definestartstop[timelinea][ after=\column, ] \definestartstop[timelineb][] \starttext \startconcurrent \starttimelinea \dorecurse{5}{\input ward} \stoptimelinea \starttimelineb \dorecurse{5}{\input knuth} \stoptimelineb \stopconcurrent \stoptext % EOT The ward and knuth texts end up in the same column because one is shorter than the other. Here's another attempt: % SOT \defineparagraphs[concurrent][n=2] \definestartstop[timelinea][ before=\concurrent, after=\concurrent, ] \definestartstop[timelineb][ before=\concurrent, ] \starttext \startconcurrent \starttimelinea \dorecurse{5}{\input ward} \stoptimelinea \starttimelineb \dorecurse{5}{\input knuth} \stoptimelineb \stopconcurrent \stoptext % EOT This loses much of the input text. Can this be accomplished using LMTX and what would be the best approach? Would this setupparagraphs, definecolumnset, synchronizestreams, or possibly incomplete/experimental functionality? Thank you!