On Sat, 23 Dec 2017, Ricardo Berlasso wrote:
Yes. The "Fancy" option indeed adds that line to the preamble. You can check what's on the "hidden" preamble by opening the "code pane" (View → Code Preview Pane) and select the "Only Preamble" option.
Ricardo,
That's interesting. When I looked at the .lyx code I saw only what I had
placed in the preamble, including the line %\usepackage{fancyhdr}, and none
of the other included packages seen in the source preview.
Thanks for the lesson,
Rich
