So the way I would love to do it, is to have a 1cm narrower document setup and fill it with content.
Check these posts
Peter: I've already tried that one, and it works fine. But it's not that comfortable when you work with a 150 page document....
Rob: thanks for the links, I didn't check the discussion well and then found a way myself — and it seems to be the same one, you suggest, haha. Thanks!