Organizing Visio Pages

I’m using Visio 2000, and I’m kind of wet-behind-the-ears with it. I’ve self-taught myself in the last week, but my doc is now 40+ pages, and I’m wondering if, along the bottom where the page tabs are, if it is possible to organize these pages so Idon’t need to scroll all the way to the right to access the end pages. Is it possible to organize these pages within submenus in the same document?