Setting different default fonts for headings and body copy

I’m trying to set my headings to Ariel (or any standard san serif) and my body do Georgia (a standard serif font) but for the life of me I can’t find where to setup the header font.
I already do this quite simply in Word using paragraph styles.

Thanks for any help.

For headings / footers

Compile -> Formatting

For body font I wish to know, too. :confused: