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Properties of the Rows/Columns 
In the Properties of the Rows or Properties of the Columns dialog, you can specify whether all objects of the rows or columns (structure, characteristics with or without display hierarchies) are displayed as individual hierarchies.
If you want to display objects of the rows or columns as a hierarchy, select active.
Here you can choose up to which hierarchy level the hierarchy is to drilled down to in the initial view.
Click on the free
areas in the current area, rows or columns. In the Properties screen
area, the properties dialog for the rows or columns appear. With
Display/Change you can set whether the
properties of the rows or columns can or cannot be changed. You can save your
settings with
Save.
You can use this function to display multiple drilldowns, for example, Country, Region, Town, although there is no display hierarchy.