See the following ML thread:
https://www.mail-archive.com/search?l=mid&q=ndao0s%24vvb%242%40ger.gmane.org
\begin_document
\begin_header
\save_transient_properties true
-\origin unavailable
+\origin /systemlyxdir/examples/es/
\textclass article
\begin_preamble
%% Uncomment the following for Tableaux captions on top:
\begin_document
\begin_header
\save_transient_properties true
-\origin unavailable
+\origin /systemlyxdir/examples/
\textclass seminar
\begin_preamble
\renewcommand{\printlandscape}{\special{landscape}}