> > Change the "titles" to "Parts" and copy paste the rest in. > > Use Insert->Insert File->LyX file. > > Rich
I think you miss out on some formatting, and you may have trouble with multiple titles/authors and different preambles. To make one super document, the title of the individual files should be a "Part". I just tried the insert method to combine a couple of files (tutorial and user guide) and nothing came out due to a preamble problem. You probably could pull some latex magick with if and include, but it would not be very clean in lyx.