Hello all, I would like to typeset a certain enumeration when a corresponding mode is enabled, like so: \defineenumeration [Solution] [text={Solution:}, headstyle=bold, before={\startmode[solution]}, after={\stopmode}, style=normal, title=no ] \starttext \enablemode[solution] \startSolution Enabled \stopSolution \stoptext This works, but when I disable the mode, I get the error message tex error > runaway error: end of file encountered mtx-context | fatal error: return code: 1 Is there a suitable incantation to make this work? Thanks for all the help, Matthias