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The drill-down and drill up capabilities on the date and date time fields is a new navigational enhancement. Clicking "+" expands the hierarchy into year, quarter, month, weeks, days, hour, minute, seconds. Clicking "-" collapses the hierarchy. This streamlined user interaction is supported in Columns, Rows, and Chart Properties Decks.
Applicable only to Primary Date Dimensions in the Columns, Rows, Break, and Label Decks
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