Drilling increases or decreases data-object detail by changing the member display. Because drilling is customizable, the term drilling refers to almost any hierarchical navigation prompted by clicking a dimension label.
Three types of drilling options:
Drilling options specify the result set.
Expand on Drill specifies whether the result set replaces or augments the currently displayed members.
The Selected Member data-display option specifies whether the drilled member is included in the result set.
Web Analysis users must use the data-object, right-click menu to set drill options. Expand on Drill and Selected Member options are set by user preferences in Web Analysis Studio.