Spacing between multiple choice question in examdesign documentclass

Question

Is there a way to control the spacing between multiple choice questions using the examdesign documentclass? So far I've only been able to do it by manually adding space after the last alternative, but I'd like a more elegant way to do it. I checked the documentation but wasn't able to figure out how to modify the question (or multiplechoice) environment.

\documentclass{examdesign}
\class{Some exam}

\begin{document}
\begin{multiplechoice}
\begin{question}
What is the correct answer?
\choice{This is not.}
\choice[!]{This is.}
\choice{This is not.}\\[1cm]
\end{question}

\begin{question}
Some other question to check spacing.
\choice{This is not.}
\choice[!]{This is.}
\choice{This is not.}\\[1cm]
\end{question}
\end{multiplechoice}
\end{document}

Answer 1

You could use the \@endquestionhook command to add the space; this, however, will affect all question environments:

\documentclass{examdesign}

\class{Some exam}

\makeatletter
\renewcommand\@endquestionhook{\vspace{1cm}}
\makeatother

\begin{document}
\begin{multiplechoice}
\begin{question}
What is the correct answer?
\choice{This is not.}
\choice[!]{This is.}
\choice{This is not.}
\end{question}

\begin{question}
Some other question to check spacing.
\choice{This is not.}
\choice[!]{This is.}
\choice{This is not.}
\end{question}
\end{multiplechoice}

\end{document}