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The section is a pure presentation layer. No data is stored in it.
Sections have common settings Settings, and can use different view-types:
List view (default) = show entries as list / table
Map view = show entries on an interactive map
Orgchart view = show entries as interactive organizational chart
Timeline view = show entries as timeline
Further information
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User view = show all portrait users as list
What fields of an entry are displayed, is defined via Column Types.