Hi again, These days I've got the (longed-for) moment where much of the work was definitively done. Result of this is a set of different LyX documents (book-style), each one is a chapter. I've tried that called master/child document, but the resulting preview is absolutely unacceptable, 'cause it doesn't get to treat accents properly, so it puts other characters just where there should be an accent. My mother tongue, Spanish, is a language full of accents everywhere so, after mastering the set, the "crashing" aspect of each page is really awful. Besides, this adds more characters per page, which alters the desired position of most of the sections/subsections,...
In the master, Document > Settings > Language > Spanish, and encoding "LaTeX default" but into each child document, I have set Language Spanish too, but encoding "utf8", with good results. If I switch to "utf8" in the master settings, the xdvi preview gives me a lot of warnings about this fact, obviously. So I don't know what to do, if I should abandon the idea of building a master document,since I don't see clearly which advantages it really provides. Anyone could point me any? Besides, the master document has not built-in the sets of child documents, has it? Consequently, the whole set of child docs should be there forever, if I've understood it rightly. Regards, Daniel