what are the things you can do in the BMM layer? | OBIEE

Aggregation navigation, level base metrics, time series wizard, create new logical column, complex join.
How do you bring/relate the aggregate tables into the Siebel analytics Logical layer?
One way of bringing the Aggregate Tables into the BMM layer is by bringing them as Logical Table sources for the corresponding Fact table.
This is done by dragging and dropping the aggregate table into the corresponding fact table. After doing that establish the column mappings and the set the aggregation levels.