You can keep track of multiple pages more easily by incorporating them into your iSIS Favorites. To do so, navigate within iSIS to the desired page and then in the upper right corner, click the Add to Favorites link. Enter a Description and then click OK. The page can now be found in the left hand navigation pagelet, under My Favorites.
NOTE: It is usually simpler to use the default iSIS name for the page being saved, though you can name it something else short and descriptive.