I have a division like
- Diseases
- ... [many frames]
- How to develop Diagnostics
- Common Diagnostics
- ... [many frames]
- How to Diagnose and Treat
- ... [many frames]
Dummy code
\documentclass{beamer}
\usetheme{Copenhagen}
\usepackage[T1]{fontenc}
\usepackage{newunicodechar}
\begin{document}
\title{Diagnostics}
\author{Masi}
\begin{titlepage}
1.11.2015.
\end{titlepage}
\begin{document}
\begin{frame}
\part{Diseases}
\frametitle{How can you define a disease?}
\end{frame}
... [many frames]
\begin{frame}
\part{How to develop Diagnostics}
\frametitle{common approaches}
\end{frame}
--- [many frames]
\begin{frame}
\part{How to diagnose and treat?}
\frametitle{Diagsose Disease A, ...}
...
\end{frame}
--- [many frames]
\end{document}
where many pages. I know that you can have somehow major frametitles or something similar but could not find how to do it. It is possible that the part command is not the right way.
How can you have major titles for many frames such that the frame can have individual frametitles?

\parts be outside the frames? – Johannes_B Oct 23 '15 at 16:13