New page or slide
At the end of every document, there should be a button for creating a new page or slide.
You use handles to select objects — like pages, slides, or list items. Why would you want to do that? Well, for one thing, selection results in contextual commands appearing in the contextbar — thus, with selection of a page, you would get page commands, like “Page style” or “Switch orientation” in the contextbar. But even if the suite didn’t have a contextual bar for pages, selection is still useful for moving (by drag-and-drop), deleting (by pushing “Delete”), copying (“Ctrl-C”), etc.
The style bar is a floating toolbar containing pinned styles. It appears only on selection, centered above or below it, depending on the selection’s position. It doesn’t appear by default, as, by default, no styles are pinned. Ideally, the style would also feature an overflow menu with unpinned styles.