Lyx KOMA-script page header

Question

I am working on a book using KOMA-script in LYX 2.3. The first two chapters (Preface and Introduction_ are unnumbered. I can add them to the Table of Contents using e.g., \addcontentsline{toc}{chapter}{Preface}. However, the page header does not show the chapter name.

I have tried adding \usepackage{scrlayer-scrpage} to the LaTeX preamble and \pagehead {Preface} to the text. This results in error message:

"Undefined control sequence" when trying to output pdf.

Any advice?

Answer 1

With document class scrbook you can use \frontmatter and \mainmatter and \chapter for unnumbered chapters in front matter.

Example:

\documentclass{scrbook}
\usepackage{lipsum}% only for dummy text
\begin{document}
\frontmatter
\tableofcontents
\chapter{Preface}
\lipsum
\chapter{Introduction}
\lipsum
\mainmatter
\chapter{Foo}
\lipsum
\end{document}

Or you can use \addchap for unnumbered chapters.

Example:

\documentclass{scrbook}
\usepackage{lipsum}% only for dummy text
\begin{document}
\tableofcontents
\addchap{Preface}
\lipsum
\addchap{Introduction}
\lipsum
\chapter{Foo}
\lipsum
\end{document}