How to print two pages per sheet in OpenOffice Writer (+CUPS)?
In OOo2.0 Help, search for "Printing Multiple Pages on One Sheet". This will get you started (in page preview), although in my case in wasn't exactly right, in that the "Page Preview: Two Pages" button was grayed out, & I could not determine how to enable it. At any rate, once I was in Page Preview, I clicked "Page Preview: Multiple Pages" & selected a 2 x 1 page preview. Then I clicked the "Print Options Page View" button & selected 1 row by 2 columns. You may also select other options here. Then press the "Print Page View Button" & you are done.