[NTG-context] Tables in multiple columns?

There's an example in the Wiki on how to put a table into multiple columns that no longer works in LMTX (version 2020.11.05 23:01). https://wiki.contextgarden.net/TABLE#Tables_in_multiple_columns \starttext \startcolumns[n=3] \bTABLE \dorecurse{21} {\bTR \bTD a\eTD \bTD b \eTD \eTR} \eTABLE \stopcolumns \stoptext I'm interested because I have a long thin table that I would to avoid having to manually split, but I would also like the heading to repeat at the top of each column and \starttabulation doesn't do the latter. I was hoping that \bTABLE did. -- Bruce Horrocks Hampshire, UK