%% It is possible (if not particularly convenient) to do the same thing
%% yourself. Suppose you want your top-level \environment{enumerate}s to
%% be labelled I/, II/, III/, \dots{}, then give these commands:
%% \begin{verbatim}
%% \renewcommand{\theenumi}{\Roman{enumi}}
%% \renewcommand{\labelenumi}{\theenumi/}
%% \end{verbatim}
%% The possible styles of numbering are given in Section~6.3 of Lamport's
%% book (see \Qref[question]{\TeX{}-related books}{Q-book-lists}). Both
%% \csx{theenumi} and \csx{labelenumi} must be changed, since