Adding text immediately after the main text of a scrlttr2 letter

Question

A letter normally ends with a signature. I've want to add text after this point. To be clear, I don't want it right at the bottom of the letter, I want the text to be more or less immediately following the main text of the letter, preferably with a user-adjustable gap. Is this possible, or will the structure of scrlttr2 not allow it?

Answer 1

You can insert additional text after \closing.

\documentclass{scrlttr2}
\setkomavar{signature}{Signature}
\usepackage{blindtext}
\begin{document}
\begin{letter}{xxx}
\opening{Hi,}
\blindtext
\closing{Best regards}
\blindtext
\end{letter}
\end{document}

You can also use \ps before the additional text. Then the first paragraph is not indented and if no \parskip is used, a vertical space of \baselineskip is added.

\documentclass[
  %parskip
]{scrlttr2}
\setkomavar{signature}{Signature}
\usepackage{blindtext}
\begin{document}
\begin{letter}{xxx}
\opening{Hi,}
\blindtext
\closing{Best regards}
\ps
\blindtext
\end{letter}
\end{document}

You could patch \ps to change the vertical space between signature and the additional text:

\usepackage{xpatch}
\xpretocmd\ps{\vspace{-1\baselineskip}}{}{\PatchFailed}