View
 

Expand Selected (Cmd->) —  expands the selected cells
Expand All (Option-Cmd->) —  expands all cells
Collapse Selected (Cmd-<) —  collapses the selected cells
Collapse All (Option-Cmd-<) —  collapses all cells
Collapse Parent (Control-Cmd-<) —  collapses the selected cell’s parent
Full Cell Text (Escape) —  reduces the selected cells to their first line of text
Auto-sort —  commands for auto-sorting the children of the selected cells

Ruler (Cmd-R) —  toggles the text ruler
Cell Controls —  toggles cell control display on the current page

Creation Dates —  toggles creation dates display
Change Dates —  toggles change dates display
Due Dates —  toggles due dates display

Stickers —  toggles Sticker display
Keywords (Cmd-K) —  toggles Keyword display
Action Item Status —  toggles status checkbox display
Priorities —  toggles priority display

Contents Card (Option-Cmd-Home) —  toggles Contents Card display
Toolbar (Cmd /) —  toggles toolbar display
Customize Toolbar... —  reveals a sheet for configuring the toolbar

Zoom —  contains commands for changing the Notebook’s visual scale