Jihène Krichène wrote: > Hello everybody > I added a new .cls file to the /usr/share/texmf/tex/latex/base directory. I > runned the texhash and I reconfigured (edit->reconfigure). But I still not > seeying the new class in the layout->document->class
Note that you have to write a lyx *.layout file, if there is not yet one for this specific class distributed. It's not that difficult, have a look at Help->Customization, Section 6 and the layout files in the lyx/layouts directory. HTH, Juergen.