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Create and Change 
The following sections explain how you create aggregates and BI accelerator indexes and edit them.
● If you have not yet created aggregates for an InfoCube but you want to optimize query performance for the InfoCube, see Creating the First Aggregate for an InfoCube.
● For detailed information about manually creating and changing aggregates, see the information about editing aggregates manually.
● If you want the system to propose aggregates, see Automatic Selection and Optimization of Aggregates.
● If you want to create a BI accelerator index for an InfoCube, see Using the BIA Index Maintenance Wizard.