Drill-Through 
You use this function to access source data that can be accessed through a URL.
An administrator has defined a drill-through definition on the active application. For set up information, see Drill-Through Setup.
To access the drill through content, users have the been assigned EndUserDrillThrough task privileges.
Upon selecting a cell in a report, a list of available drill-through IDs is displayed in the action pane. These drill-throughs come from the active application. You select the desired drill through, then click OK to execute it.
Note
Since drill-throughs are specific for each application and purpose, contact your administrator for descriptions of the available drill-throughs.
If your selection is a data cell, the value of the URL parameters is taken from the dimension member or property value of the current selection.
If your selection is an empty cell, the value of the URL parameters is taken from the dimension member or property value of the current view.