![alt text][1]
Aus [KOMA-Script-Homepage:][2]
\documentclass[a4paper, oneside, 12pt]{scrbook}
%Seitenzahlen mittig, keine LEERSEITEN
%\documentclass[a4paper, cleardoubleplain, oneside 12pt]{scrbook}
%Seitenzahlen rechts und links, keine LEERSEITEN
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{scrpage2}
\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{blindtext}
\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% DAUMENREGISTER
% Chapter thumbs with scrpage2
%
% Safty first
\@ifundefined{chapter}{\let\chapter\undefined
\chapter must be defined to use chapter thumbs!}{%
% Two new commands for the width and height of the boxes with the
% chapter number at the thumbs (use of commands instead of lengths
% for sparing registers)
\newcommand*{\chapterthumbwidth}{5em} %{2em}
\newcommand*{\chapterthumbheight}{2em} %{1em}
% Two new commands for the colors of the box background and the
% chapter numbers of the thumbs
\newcommand*{\chapterthumbboxcolor}{red} %{black}
\newcommand*{\chapterthumbtextcolor}{yellow} %{white}
% New command to set a chapter thumb. I'm using a group at this
% command, because I'm changing the temporary dimension \@tempdima
\newcommand*{\putchapterthumb}{%
\begingroup
\Large
% calculate the horizontal possition of the right paper border
% (I ignore \hoffset, because I interprete \hoffset moves the page
% at the paper e.g. if you are using cropmarks)
\setlength{\@tempdima}{\@oddheadshift}% (internal from scrpage2)
\setlength{\@tempdima}{-\@tempdima}%
\addtolength{\@tempdima}{\paperwidth}%
\addtolength{\@tempdima}{-\oddsidemargin}%
\addtolength{\@tempdima}{-1in}%
% putting the thumbs should not change the horizontal
% possition
\rlap{%
% move to the calculated horizontal possition
\hspace*{\@tempdima}%
% putting the thumbs should not change the vertical
% possition
\vbox to 0pt{%
% calculate the vertical possition of the thumbs (I ignore
% \voffset for the same reasons told above)
\setlength{\@tempdima}{\chapterthumbwidth}%
\multiply\@tempdima by\value{chapter}%
\addtolength{\@tempdima}{-\chapterthumbwidth}%
\addtolength{\@tempdima}{-\baselineskip}%
% move to the calculated vertical possition
\vspace*{\@tempdima}%
% put the thumbs left so the current horizontal possition
\llap{%
% and rotate them
\rotatebox{90}{\colorbox{\chapterthumbboxcolor}
{%
\parbox[c][\chapterthumbheight][c]{\chapterthumbwidth}{%
\centering
\textcolor{\chapterthumbtextcolor}{%
\strut\thechapter}\\
}%
}%
}%
}%
% avoid overfull \vbox messages
\vss
}%
}%
\endgroup
}
% New command, which works like \lohead but also puts the thumbs (you
% cannot use \ihead with this definition but you may change this, if
% you use more internal scrpage2 commands)
\newcommand*{\loheadwithchapterthumbs}[2][]{%
\lohead[\putchapterthumb#1]{\putchapterthumb#2}%
}
% initial use
\loheadwithchapterthumbs{}
\pagestyle{scrheadings}
}
%
% End of chapter thumbs with scrpage2
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\makeatother
%===========
\begin{document}
%===========
\tableofcontents
\part{Überschrift des 1. Teils}
\chapter{Kapitel 1}
\section{Abschnitt}
\subsection{Unterabschnitt}
\subsection{Unterabschnitt}
\subsubsection{Unterunterabschnitt}
\paragraph{Paragraph}
\subparagraph{Unterparagraph}
\subsection{Unterabschnitt}
\chapter{Kapitel 2}
\section{Abschnitt}
\subsection{Unterabschnitt}
\subsection{Unterabschnitt}
\subsubsection{Unterunterabschnitt}
\paragraph{Paragraph}
\subparagraph{Unterparagraph}
\chapter{Kapitel 3}
\section{Abschnitt}
\subsection{Unterabschnitt}
\subsection{Unterabschnitt}
\subsubsection{Unterunterabschnitt}
\paragraph{Paragraph}
\subparagraph{Unterparagraph}
\part{Überschrift des 2. Teils}
%===========
\end{document}
%===========
[1]: http://texwelt.de/wissen/upfiles/aaaaaha22tf__--13-1215_03_1.pnghttp://texwelt.de/wissen/upfiles/aaaaaha22tf__--13-1215_03_1.png
[2]: http://www.komascript.de/chapterthumbs-example