Custom Headers / Footers

[Marshall, Joshua]

Hi all,

I'm a new user to Lyx and TeX, and am looking at using it instead of
Micro$oft Word for documenting our IT structure here.

What I'd like to know is if I'm able to customise the output to have a
graphic in the header and extra text in the footers of each page?

Would I do this with the defaults in TeX / the TeX Preamble part? How
would I do this?

Regards,
Josh Marshall.