I think I partially solved my problem with this lines of code:
Code: Select all
\defbeamertemplate*{footline}{mytheme}
{
\leavevmode%
\hbox{%
\begin{beamercolorbox}[wd=.3\paperwidth,ht=2.25ex,dp=1ex,center]{section in head/foot}%
\usebeamerfont{author in head/foot}~\insertshorttitle
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.4\paperwidth,ht=2.25ex,dp=1ex,center]{section in head/foot}%
\usebeamerfont{author in head/foot}~\insertshortinstitute{}
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.3\paperwidth,ht=2.25ex,dp=1ex,right]{section in head/foot}%
\usebeamerfont{date in head/foot}
\insertframenumber{} / \inserttotalframenumber\hspace*{2ex}
\end{beamercolorbox}}%
\vskip0pt%
}
\usebeamertemplate{mytheme}
\defbeamertemplate*{headline}{mytheme2}
{
\leavevmode%
\hbox{%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,left]{section in head/foot}
\tiny\quad \insertsectionhead
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,left]{structure}
\tiny\quad \insertsubsectionhead
\end{beamercolorbox}}%
\vskip0pt%
}
\usebeamertemplate{mytheme2}

Right now I'm using the command \insertsectionhead (in mytheme2); what I have to do if I want ALL the sections to be displayed in that box?
Thx
MC