[scribus] Another dumb question

[John Jason Jordan]

This has to be really simple.

I have a master page set up for front matter in a book. I also have a
master page set up for the rest of the book. Both have a text frame
with # for the automatic page number. This is working perfectly, but I
can't figure out how to make the # in the front matter be in Roman
numerals. 

I've spent an hour on the wiki and I can't find the answer. Anyone?