Customize itemize bullets

Question

I'm trying to create an ordered list that has a "collection" bullet at the end, as in this example:

\documentclass{article}
\begin{document}
Some text.

\begin{enumerate}
    \item Item 1
    \item Item 2
\end{enumerate}

\begin{itemize}
    \renewcommand{\labelitemi}{3-5.}
    \item Items 3 through 5
\end{itemize}

Some more different text.
\end{document}

I've gotten this far, which seems like the correct way to do it. However, the last item bullet point is aligned with the other items on the right edge, not the left edge, making it push out into the left margin. I haven't found a solution to this part of it yet.

Thanks!

Answer 1

If I unserstand well, you want this:

\documentclass{article}
\usepackage{enumitem}

\begin{document}

Some text.

\begin{enumerate}[align=left]
    \item Item 1
    \item Item 2
    \item[3--5.] Items 3 through 5
\end{enumerate}

Some more different text. Some more different text. Some more different text. Some more different text.
\end{document} 

If you want to continue the enumeration from 6, you can close the enumerate environment, then re-open it, with

\begin{enumerate}[resume*, start=6]
\item …
\end{enumerate}

Adding the option leftmargin=*, make the list left margin equal to the left margin for the default label:

\begin{enumerate}[align=left, leftmargin=*]
    \item Item 1
    \item Item 2
    \item[3--5.] Items 3 through 5. Some more details. Some more details. Some more details. 
\end{enumerate}

and one obtains this alignment: