On Nov 11, 2013 4:11 PM, "Nicolas Goaziou" <n.goaz...@gmail.com> wrote: > According to Beamer's user guide, "columns" environment follows the > template: > > \begin{columns}[<options>] > ... > \end{columns} > > IOW, it is not possible to define an action specification on it.
Well, that would explain it. What I should have done was put the BMCOL nodes directly into the onlyenv, and allowed the exporter to create the implicit columns environment. But I had to try to be clever first (oops). Thanks for the clarification. hjh