#tag in the library with a count. Click one to filter; the tags page explains.
The footer — the library folder’s name, the number of documents, and a gear for Settings.
Hover any document row for a moment and the time it was last edited appears.
Library
The sidebar
Recents, Starred, the folder tree, Tags and the Shelf, and everything in the right-click menus.
The sidebar is the library. ⌘S (or ⌘, or the button in its header) hides and shows it; drag its edge to resize it. From top to bottom:
The wordmark and the hide button.
Search — ⌘F from anywhere. See search.
Three rows, numbered so the left hand can reach them while the right is on the mouse: All Documents (⌘1), Timelapse (⌘2) and New Document (⌘3). The first two also answer to ⌘P and ⌘D, the third to ⌘N.
Recents — the six documents you opened most recently, newest first.
Starred — documents you have starred, from the right-click menu. The section appears when there is at least one.
Documents — the folder tree, with a count. It starts collapsed on a fresh install, because All Documents is the better way to browse and the sidebar stays calmer without it; open it once and it stays open. Hovering a folder swaps its count for a + that makes a new document inside it; the arrows button in the header sorts everything by last edited, name or date created. Folders remember whether they are expanded.
Shelf — documents set aside, collapsed, with a count. Present only when something is on it.
Tags — every

