I think this is a simple question. I am currently writing an article in LyX using the document class RevTeX 4.1. I want to do a Supplementary Material for this text using the same document class and include it as a child document.
I started writing the article as the master document, and included the lyx file of the Supplementary Material using "Insert-> File -> Child Document". As I tried to view the document, the main article was OK, but the Supplementary Material lacked its own title. How can I produce a document that has the article and the Supp. Mat., each with its own title?