Sr. Lyx I have been using Lyx to write my thesis. I have set up the format of the page with a class document: "book" and a style of page "fancy". It is interesting to me to know how i can manage the properties of the size and type of font of the headers. I mean to set up some properties of book class, especially headers an numbers.
How can i know if in my computer has installed the "fancyhdr" package? How can i install the "fancyhdr" package ? How can i manage the "fancyhdr" package ? Best Adrián