nicematrix — override column separator @{} in \Block

Question

The following code:

\documentclass{article}
\usepackage{nicematrix}
\begin{document}
\begin{NiceTabular}{r@{---}l}
1 & 2 \
10 & 20 \
\Block{1-2}{100}
\end{NiceTabular}
\end{document}

produces this table

The problem is that column separator @{---} is still present in multicolumn created with \Block which overlaps the content. Is it possible to remove it?

Answer 1

Try the legacy \multicolumn command instead

\documentclass{article}
\usepackage{nicematrix}
\begin{document}
\begin{NiceTabular}{r@{---}l}
    1 & 2 \\
    10 & 20 \\
    \multicolumn{2}{c}{100}
\end{NiceTabular}


\end{document}