I'm using quad inside itemize. In detail,
\documentclass{article}
\begin{document}
\begin{itemize}
\item Item 1a\\Item 1b
\item Item 2\\\quad Subitem 2a\\\quad Subitem 2b
\item Item 3
\end{itemize}
\end{document}
The quads in front of Subitems 2a and 2b don't work. Can I activate the quads by force? Thanks.

itemizeorenumerateenvironments? Also have a look at theenumitempackage which makes customizing indentation and item labels easier. – siracusa Sep 28 '19 at 03:46