Pages allow you to predefine layouts of cuelists, scenes and group masters, so that they can be loaded quickly on to the available playback masters.
For a concert, for example, cuelists can be organized in one page per song, so that before each performance it is possible to re-arrange the pages to reflect the current running order of the songs. One cuelist can be used several times within a page or on several pages, or it can be unique to a specific page. A template page can define certain masters to be the same on every page.