}]
\startsubsection[title={Subsection}]
\startsubsubsection[title={First Subsubsection}]
\startsubsubsubsection[title={Foo}, reference=foo]
\stopsubsubsubsection
\startsubsubsection[title={Second subsubsection}]
\startsubsubsubsection[title={Bar}, reference
\def\stopS{\stopsubsection}
\def\startSS{\startsubsubsection}
\def\stopSS{\stopsubsubsection}
\def\startSSS{\startsubsubsubsection}
\def\stopSSS{\stopsubsubsubsection}
\def\startX{\startsubsubsubsubsection}
\def\stopX{\stopsubsubsubsubsection}
\def\startXX{\startsubsubsubsubsubsection}
\def\stopXX{\s
