Is there a way to open/close all collapsed/open cells? The reason is for a long notebook, it is convenient to see all the section and subsection headings at once.

  • 7
    $\begingroup$ STEP 1: Select All (Edit Menu -> Select All). ............STEP 2: Cell Menu -> Grouping -> Close All Subgroups $\endgroup$
    – wolfies
    Aug 6, 2013 at 17:59
  • 4
    $\begingroup$ Ctrl+A,Ctrl+Shift+] $\endgroup$
    – Hector
    Aug 7, 2013 at 17:05

1 Answer 1


(Per Hector's comment)

Ctrl+A to select all cells and Ctrl+Shift+] to close them. Ctrl+Shift+[ opens closed cells.


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