Using this function, you can drill down by period in the drilldown list. The row on which the cursor is positioned will then be broken down by period.
In order to do this, you must have selected characteristic "Period" on the Characteristics screen when you defined the report. The function is not active if the data is already broken down by period on the current level.
If you chose a period on an earlier level, the system summarizes this breakdown and drills down on the row where the cursor is positioned.