I used to make the Appendix by calling it "Appendix" in the following way:
% in the following I just show the documentclass in case it is relevant
\documentclass[aps,pre,onecolumn,noshowpacs,superscriptaddress,groupedaddress,preprintnumbers,nofootinbib,showpacs,12pt]{revtex4}
% here I start the appendix
\appendix
\section{title of the first section of the appendix}
but now I will need to call it "Supplementary Information" rather than "Appendix". If I just add a section
\section{Supplementary Information}
of course it will be numbered in the same way as the other sections. I do not want it. So I try
\section*{Supplementary Information}
\subsection{first section of SI}
But then the style of the title changes and in addition the SI subsections follow the numbering of the subsections of previous sections, rather than starting from 1 (or A).
Finally, if I do
\section*{Supplementary Information}
\subsection*{first section of SI}
the SI sections have no number at all. That's not what I want. I want the SI sections to be numbered starting from the first SI section, and I want the SI title to have no number (and possibly be all capital letters).
How can I do it?
