Width in Full Screen Mode

Is there a way to adjust the width of the document text when in Full Screen mode in OSX Lion?
I think it has the same width as in PAge View -> Printed Page Size.

In the full screen composition mode there is a slider to adjust the paper width.

TIA

Hi,

Yes, it’s in the “Editor” pane of the Preferences:

All the best,
Keith

And it works, thanks!