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I'm having trouble understanding how to make togglable cells in presentations in mathematica. In the notebooks I download from the website training, when I click a title or so it toggles the open cells, as show in the image below.

togglable cells

However when i create a slideshow from scratch (using the slideshow palette), I always get an edit cursor. Trying to close open cells with shortcuts or using the little bars on the right is not nearly as nice as just clicking on a title.

togglable cells

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Thanks for asking - formatting baffles. – alancalvitti Oct 12 '14 at 16:43

After some frustrating hunting around, I think I found it. You have to enable this option in the option inspector (for the selected cells or the selected notebook):


This will lead to the desired behaviour.

toggle group opener options

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