Ctrl+Shift+O

Switch to Outline View

Tab/Shift+Tab

Promote / Demote a paragraph (or Alt+Shift+Arrow Left/Arrow Right)

Alt+Shift+Arrow Up/ Arrow Down

Move selected paragraphs up / down

Ctrl+Shift+N

Demote to body text (set style to normal)

Alt+Shift++ / -

Expand / Collapse text under a heading

Alt+Shift+A

Expand or collapse all text or headings

/ key on the numeric keypad

Hide or display character formatting

Alt+Shift+L

Show the first line of body text or all body text

Alt+Shift+1

Show all headings with the Heading 1 style

Alt+Shift+n

Show all headings up to Heading n

Ctrl+Tab

Insert a tab character