[scribus] Centre on page? When printing

[Calum Polwart]

OK i have an A5 document. Normally I'm sending it to PDF and bookletting
it etc.  However, sometimes people want a colour proof of the covers
(the only colour part) so I usually print the covers on A4 with the
document for printing.

Now that 1.3.5 lets me have colour registration bars I print them too as
I think thats probably helpful - BUT how can I get the page to centre on
an A4 sheet?  currently my printer puts it in the bottom left corner
which seems wierd?

Calum