Expanded page hierarchy in the new Google Sites
10/11/2017
What’s new: We know that many of your sites require a deep page hierarchy. That’s why we’ve made it possible to nest five levels of pages in the new Google Sites, up from the two levels previously allowed. To nest a page within a page, simply drag and drop it into your desired location from the Pages menu on the righthand side of your screen—or use one of several new shortcuts.
Updated: Gimasys