I think that LyX is a fantastic software. Since I started using it, I never more wrote a LaTeX file. But now I have a serious problem: I need to write a document to be published in Journal of High Energy Physics (JHEP) and I must use the JHEP style (see http://jhep.sissa.it/tools_tex.html). How can I do that in LyX??? I have tried to put the file JHEP3.cls in the LaTeX preamble but it did not work. I will be greatfull for any help.
Marco Kneipp
