SQL Server Video on Analysis Services Aggregation Designs

Just like with SQL Server indexes, there are several methods available for setting up aggregations in SSAS. You can use the Aggregation Design wizard or the Usage Based Optimization wizard to setup aggregations in just a few steps. However, SSAS also provides a method of reviewing and even adding individual aggregation designs (aggregation groups) and individual aggregations in a more manual method. In order to create new aggregations, you must switch to the advanced view within the cube aggregation tab. Once on the Advanced view, individual dimension attributes can be added to your own custom aggregations which are tailored to your specific SSAS cube design and usage.