# Subtitles for subsections in scrbook

Is there a way to insert a subtitle right underneath a subsection heading in the scrbook class?

I found this question/solution - , basically exactly what I try to achieve, but I coulnd't make it work with the scrbook class..

Further, I found this solution, however I need the subtitle to be formatted slightly differently than the subsection heading, meaning not bold and sans-serif.

One reason why I need to have the subtitled treated as sort of a 'heading/title' is because I need the first line of the following subsection to appear with no indent.

Finally, I wish the subsection plus the subtitle not to be numbered (I'm currently using the starred version for subsections) and I do not wish the subtitle to appear in the TOC. I imagine something like this:

MWE:

\documentclass[
11pt,
ngerman,
a4paper,
open=any,
parskip=false,
captions=nooneline,
toc=listofnumbered,
toc=bibliography,
numbers=noenddot,
bibliography=leveldown]{scrbook}
\usepackage[inner=2.5cm, outer=2.5cm,tmargin=3cm, bmargin=4cm]{geometry}
\setcounter{tocdepth}{3}
\usepackage{scrlayer-scrpage}
\usepackage[ngerman]{babel}
\usepackage{lipsum}

\begin{document}
\tableofcontents

\part{Part I}
\chapter{Chapter 1}
\section{Section 1}
\subsection*{Subsection}
Subtitle\\
First line of subsection with no indent.

\end{document}

• To clarify: You "do not wish the subtitle to appear in the TOC", but the (unnumbered) subsection should appear in the TOC, right? See my answer, where I worked under this assumption. Mar 3 at 11:14
• No, I'm sorry for not being clear on that. I don't want the subsection nor the subtitle to appear in the TOC. Mar 3 at 15:00
• Great, then only the first part of my answer applies; for the rest, you are good with \subsection*. Mar 3 at 15:04
• Many thanks @marquinho for your efforts, plus the added explanation of your code. It's perfect. It works just exactly how I imagined it. You made my day, a big thank you! Mar 3 at 15:05
• One detail I just realised: the \newcommand{\subsecsubvskip}{\vspace{1ex}} adjusts the space between the subtitle and the subsection text and not the space btw title and subtitle. However, I could adjust the latter with \RedeclareSectionCommand[beforeskip=-10pt,afterskip=1pt]{subsection} Mar 3 at 15:32

You can declare a new section command \subsecsubtitle

\RedeclareSectionCommand[
afterskip=.5ex
]{subsection}

\DeclareNewSectionCommand[
style=section,
level=\subsectionnumdepth,
afterskip=1.5ex plus .2ex,
beforeskip=-.5ex,
indent=0pt,
font=\mdseries\small,
tocstyle=gobble% no TOC entry
]{subsecsubtitle}


Then you can use

\subsection*{Subsection}
\subsecsubtitle*{Subtitle}


to get an unnumbered subsection followed by the unnumbered subtitle. This also avoids a page break between the subtitle and the following text.

Note that beforeskip of the subtitle is ignored if \subsecsubtitle is next to another section command.

Example:

\documentclass[
%11pt,% default
ngerman,
%a4paper,% default
open=any,
%parskip=false,% default
captions=nooneline,
toc=listofnumbered,
toc=bibliography,
numbers=noenddot,
bibliography=leveldown]{scrbook}
\usepackage[inner=2.5cm, outer=2.5cm,tmargin=3cm, bmargin=4cm]{geometry}
\usepackage{scrlayer-scrpage}
\usepackage{babel}
\usepackage{lipsum}% only for dummy text

\setcounter{tocdepth}{\subsubsectiontocdepth}

\RedeclareSectionCommand[
afterskip=.5ex
]{subsection}

\DeclareNewSectionCommand[
style=section,
level=\subsectionnumdepth,
afterskip=1.5ex plus .2ex,
beforeskip=-1pt,
indent=0pt,
font=\mdseries\small,
tocstyle=gobble
]{subsecsubtitle}

\begin{document}
\tableofcontents

\part{Part I}
\chapter{Chapter 1}
\section{Section 1}
\subsection*{Subsection}
\subsecsubtitle*{Subtitle}
First line of subsection with no indent.

\end{document}


• +1 for the organic, comprehensive solution and (among other things) for taking care of avoiding page breaks. Mar 3 at 17:37
• Many thanks @esdd! I adopted your code one to one. It works and it looks just wonderful! Thank you very much indeed. Mar 7 at 9:40

EDIT: I included a setting to adjust the vertical spacing between title and subtitle, which was missing, as indicated by OP.

## Subtitle

The best approach, I think, would be to follow this answer and define a custom command \subsecsubtitle for exactly this purpose.

The command includes the desired font specifications and the direction \noindent. Note that this is only a mock sectioning command: it has all the visual trappings of a title, but it does not send anything to your TOC or to the running headers.

\newkomafont{subsecsubtitle}{\small\mdseries\sffamily}
% subtitle font: smaller than \subsection; not bold; sans-serif
\newcommand{\subsecsubvskip}{\vspace{1ex}}
% adjust the vertical space between subtitle and text

\newcommand{\subsecsubtitle}[1]{%
\vspace{-1ex}% % adjust the vertical space between title and subtitle
\begingroup\usekomafont{disposition}\usekomafont{subsecsubtitle}#1\par\endgroup%
\subsecsubvskip\noindent\ignorespaces}


You can then employ this command right after \subsection:

\subsection{Subsection}
\subsecsubtitle{Subtitle}
First line of subsection with no indent.


## Numbering and starred commands

You would like the \subsection to remain unnumbered, which is why you are using the starred version. But I also gather from your question that, while the subtitle shouldn't go to the TOC, the subsection ought to do so. However, your starred command \subsection* doesn't send anything to the TOC.

If I understand you correctly, then this is one way to do it:

\subsection*{Subsection title} % unnumbered section
\addxcontentsline{toc}{subsection}{Subsection title} % manually create TOC entry


This sends the specified title to TOC. However, you have to do it manually for every subsection. A better way is to generalize the operation, by creating a new command that does just that (argument #1 is the desired title):

\newcommand*{\subsectnonum}[1]{%
\subsection*{#1}
...
\begin{document}
...
\subsectnonum{Subsection}


(Another option would be to use the nonumber switch when invoking the section: \subsection[nonumber=true]{Subsection}. This requires to activate the package option headings=optiontoheadandtoc in the preamble. You can read more about this powerful option and about "the advanced functionality of the optional argument of the sectioning commands" in the documentation.)

## Example

\documentclass{scrbook}
\setcounter{tocdepth}{3}

\newkomafont{subsecsubtitle}{\small\mdseries\sffamily}
\newcommand{\subsecsubvskip}{\vspace{1ex}}

\newcommand{\subsecsubtitle}[1]{%
\vspace{-1ex}%
\begingroup\usekomafont{disposition}\usekomafont{subsecsubtitle}#1\par\endgroup%
\subsecsubvskip\noindent\ignorespaces}

\newcommand*{\subsectnonum}[1]{%
\subsection*{#1}

\begin{document}
\tableofcontents

\section{Section 1}
\subsection*{Normal subsection (no TOC!)} % normal subsection, no number, no TOC
\subsecsubtitle{Subtitle}
First line of subsection with no indent.

\section{Section 1}
\subsectnonum{Custom subsection}    % custom subsection w/o number
\subsecsubtitle{Subtitle}
First line of subsection with no indent.

\end{document}