Article, report, beamer:
<BR>

<CODE>\section[short]{title},</CODE>
<BR>

<CODE>\subsection[short]{title},</CODE>
<BR>

<CODE>\subsubsection[short]{title}</CODE>
<BR>

<H3>No! No subsubsubsection...</H3>

I know you would, if you could - but you can't... (Queen)