org: Headings and sections
Headings and sections
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The outline structure of the document as described in Document
Structure, forms the basis for defining sections of the exported
document. However, since the outline structure is also used for (for
example) lists of tasks, only the first three outline levels will be
used as headings. Deeper levels will become itemized lists. You can
change the location of this switch globally by setting the variable
‘org-export-headline-levels’, or on a per-file basis with a line
#+OPTIONS: H:4