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\documentclass[a4paper]{article}
\usepackage[ampersand]{labels4easylist}

\begin{document}

\title{The \texttt{labels4easylist} package}
\author{Robert Ryszard Paciorek <rrp@opcode.eu.org>}
\date{2019-05-13}
\maketitle

\section{Introduction}

This packgage provide \verb#\itemLabel# macro for adding configurable reference labels to easylist items.
Macro requires one argument - label identifier (using in \verb#\ref# for references to label).
Macro accepts two optional argument - number of easylist hierarchy levels to omission in label text.

\section{Example}

\begin{easylist}
\NewList(
	% separator pomiędzy numerami oraz separatory końcowe
	Mark=.,FinalMark=.,
	% ustawienie odstępów między punktami
	Space=0.5em,Space*=0.5em,
	% ustawienia wcięć
	Hang=true,Align=move,FinalSpace=0.5em,Progressive*=3ex,Margin1=1ex,
	Numbers5=l,Hide5=4,FinalMark5={)},Margin5=12ex,
	Hide6=6,Style6*=-- ,Margin6=15ex,
)
\ListProperties(Start1=2)
& aaa aaa     \label{A1} x\itemLabel{A2}x
&& bbb bbb    \label{B1} x\itemLabel{B2}x
\ListProperties(Start3=5)
&&&& ddd ddd  \label{C1} \itemLabel{C2} x\itemLabel{C3}[2]x x\itemLabel{C4}[0][2]x
&&&&& eee eee \label{D1} \itemLabel{D2} x\itemLabel{D3}[4]x
\end{easylist}

\vspace{0.5cm}

\begin{tabular}{ p{2.5cm} p{2.5cm} p{4.5cm} }
standard \textbackslash{}label &
\textbackslash{}itemLabel &
\textbackslash{}itemLabel with extra args \\

\ref{A1} & \ref{A2} & \\
\ref{B1} & \ref{B2} & \\
\ref{C1} & \ref{C2} & \ref{C3} in \ref{C4}\\
\ref{D1} & \ref{D2} & \ref{D3}
\end{tabular}

\subsection{easylist code}
\begin{verbatim}
\ListProperties(Start1=2)
& aaa aaa     \label{A1} x\itemLabel{A2}x
&& bbb bbb    \label{B1} x\itemLabel{B2}x
\ListProperties(Start3=5)
&&&& ddd ddd  \label{C1} \itemLabel{C2} x\itemLabel{C3}[2]x x\itemLabel{C4}[0][2]x
&&&&& eee eee \label{D1} \itemLabel{D2} x\itemLabel{D3}[4]x
\end{verbatim}

\subsection{table code}
\begin{verbatim}
\ref{A1} & \ref{A2} & \\
\ref{B1} & \ref{B2} & \\
\ref{C1} & \ref{C2} & \ref{C3} in \ref{C4}\\
\ref{D1} & \ref{D2} & \ref{D3}
\end{verbatim}

\end{document}