Attached one of the tricky solutions with ERT.
uups, forget it ...
Herbert
#LyX 1.3 created this file. For more info see http://www.lyx.org/ \lyxformat 221 \textclass article \language ngerman \inputencoding latin1 \fontscheme default \graphics default \paperfontsize 10 \spacing single \papersize Default \paperpackage a4 \use_geometry 0 \use_amsmath 0 \use_natbib 0 \use_numerical_citations 0 \paperorientation portrait \paperwidth 17cm \paperheight 22cm \leftmargin 1cm \topmargin 1cm \rightmargin 1cm \bottommargin 1cm \headsep 1cm \secnumdepth 4 \tocdepth 4 \paragraph_separation indent \defskip medskip \quotes_language german \quotes_times 2 \papercolumns 1 \papersides 2 \paperpagestyle default
\layout Itemize
First-level Item <STRG+ENTER>
\newline
Some text.
\begin_inset ERT
status Collapsed
\layout Standard
\backslash
begin{itemize}
\backslash
item
\end_inset
Second Level Item 1
\begin_inset ERT
status Collapsed
\layout Standard
\backslash
item
\end_inset
Second Level Item 2
\begin_inset ERT
status Collapsed
\layout Standard
\backslash
end{itemize}
\end_inset
I CAN'T figure out how to ADD THIS LINE.
\layout Itemize
[...]
\the_end
