Keyboard shortcuts

Windows and Linux	Mac	What it does
`Ctrl+Alt+D`	`⌃⌥D`	Goes to the desktop and the app used last; on the desktop, shows or hides the open apps.
`/`	`/`	In the Intelligent view, moves the cursor to the question field.
`Esc`	`Esc`	Closes the menu, dialog or sheet in front.
`Arrow keys`	`Arrow keys`	After Move window or Resize window in a window's menu, moves or sizes it; Enter keeps it there.
`Ctrl+Z`	`⌘Z`	In the Editor, undoes the last change.
`Ctrl+Y or Ctrl+Shift+Z`	`⌘⇧Z`	In the Editor, redoes what was undone.
`Ctrl+B, Ctrl+I, Ctrl+K`	`⌘B, ⌘I, ⌘K`	In the Editor, makes the selection bold, italic or a link.
`Ctrl+F`	`⌘F`	In the Editor, finds text in the document.
`Ctrl+S`	`⌘S`	In the Editor, downloads the document as a Markdown file.
`Tab and Shift+Tab`	`Tab and ⇧Tab`	In the Editor, Tab indents and Shift+Tab outdents; Esc then Tab moves on.
`Alt+arrow keys`	`⌥+arrow keys`	In the Calendar's Day and Week views, moves the focused event by a quarter hour or a day.
`Alt+Shift+↑ or ↓`	`⌥⇧↑ or ↓`	In the Calendar's Day and Week views, makes the focused event a quarter hour shorter or longer.
`Enter or Space`	`Enter or Space`	On a day in the Calendar's Month view, opens a new event on that day.
`← and →`	`← and →`	In Notes, with a photo shown full size, steps to the one before or after.
`↑ and ↓`	`↑ and ↓`	In the Terminal, steps through the commands typed before.
`Tab`	`Tab`	In the Terminal, completes what you have started typing.
`Ctrl+L`	`⌃L`	In the Terminal, clears the screen.