I'm a new user of LyX and a new member of this forum and I've got one important question (for me

How to make page borders in LyX? I want them to appear on every page I print. I mean something like that shown in the attachment
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Follow those instructions. Then in the upper-left combo box (it will currently say "Standard" if you are in a blank new document), choose one of the headers.Adds environments to define header and footer lines. NOTE: To use this module you must set the 'Headings style' in the menu Document Settings -> Page Layout to 'fancy'!
Package(s) required: fancyhdr.sty.
NEW: TikZ book now 40% off at Amazon.com for a short time.
And: Currently, Packt sells ebooks for $4.99 each if you buy 5 of their over 1000 ebooks. If you choose only a single one, $9.99. How about combining 3 LaTeX books with Python, gnuplot, mathplotlib, Matlab, ChatGPT or other AI books? Epub and PDF. Bundle (3 books, add more for higher discount): https://packt.link/MDH5p