Get the global cache headers located in global_cache_settings.

For Plone to show this page as a presentation to work, it must find some header tags (H1, h1, H2, h2) in your document. The document will be split into slides based upon those tags. Structured text or Kupu will all generate suitable tags for you. Further you must have the 'Enable Presentation' setting turned on in the user interface for this piece of content.

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