Originally Posted by JSWolf
What I did was make the two lines of the contents a paragraph style. Then I seperated both lines with a blank line. Then I gave the entry in the table of contents a title style and the second line a subtitle style. Book Designer then put the title in the table of contents and the Title + Subtitle as the footer. I think it's a nice effect. That way you get the full title in the footer and on an unmodified Reader you get the table of contents with all the same size font.