I did a review/update of my seminar.layout and the dinbrief.layout. Both are now at the LyX layout wiki http://wiki.lyx.org/pmwiki.php/Layouts/Layouts.
I would be happy to see them included into the "mainstream" lyx. Also, it would be nice to have the Contributed Stuff page http://www.lyx.org/download/contrib.php3 updated with a link from "Additional layout files" to the layout wiki. The current content of "Additional layout files" is outdated: Guenter Milde has contributed a textclass for the seminar document class. It has not been added to the main distribution because it is not very clean (due to LyX shortcomings), but you can find it in the contrib section of the ftp site. 1. I made a new version (http://wiki.lyx.org/pmwiki.php/Layouts/Seminar) 2. The seminar.layout that comes currently with LyX has the same problems with LyX shortcomings¹ ¹ the current LatexType "Environment" is actually "InEnvironment" (as it sets subsequent paragraphs of same type into just one Environment). A true "Environment" LatexType (include the paragraph (and nested stuff) in a \begin-\end-pair) is still missing. For backwards compatibility, the name "Environment" should be kept for the InEnvironment and a new one (ContainerEnvironment?, EnvironmentParagraph?, ...) found for the "tru" environment type. Günter -- G.Milde at web.de
