The userguide claims that you can't nest "section", "subsection", "subsection*" or "section*" into other environments.
But that is wrong - lyx 1.4cvs supports nesting these environments into enumerate at least, and it works fine with latex too. Perhaps nesting "section" is an odd thing to do, but I can see why people might want to nest "section*" in order to put some headings in a long list. It looks ok. What do you want? * A bugzilla entry? * A patch to UserGuide.lyx? If so, is the one in cvs the current one? Helge Hafting