\begingroup \grabbufferdata[simplesteps][startframe][stopframe]% }
With the \grabbufferdata command the content beginning from \startframe until \stopframe is stored in a buffer with the name “simplesteps”.
(1) What does the \begingroup do? I could not find a \endgroup in the patch, nor in the module code. (2) I've approximately documented grabbufferdata here: http://wiki.contextgarden.net/Command/grabbufferdata But when I tried to write a minimal example, I couldn't get it to compile. %% begin example \grabbufferdata[mybuffer][thisisthestart][thisistheend] \thisisthestart My friend, you would not tell with such high zest To children ardent for some desparate glory, The old Lie: Dulce et decorum est Pro patria mori. \thisistheend \typebuffer[mybuffer] %% end example What am I doing wrong? And is the description I put on the wiki correct? Cheers, Sietse