Instantiate a CubeCollection object using the AnalyticModel class GetCubeCollection method.
In cube collections, the total member behaves just as the root of the hierarchy. If it's present, it's displayed first in the list.
Filtering of members in a dimension in the cube collection is similar to filtering members using the AnalyticModel class GetMembers method. If you filter the parent node, the children of that node are filtered as well.