I am using LyX to write an article and I'm having trouble with the formatting. I want the paper to look like this: http://wiki.lyx.org/Tips/PaperLayout and I've tried to follow the instructions at the bottom of the page (add to the preamble: \usepackage{layout} Then open in your document a TeX-code box (shortcut Ctrl+L) and insert the command \layout.)

I can't figure out where in LyX to enter /usepackage{layout}.

Please help and thanks!