Dimension with multiple top levels?

I have an excel pivot table that uses data from a cube. 

I've been asked to create a filter for the pivot table that looks something like this:

--> Retail Products

     --> Consumer Deposits

     --> Business Deposits

--> Custom Product Rollups

     --> Checking

     --> Money Market

     --> Savings

Where "Retail Products" and "Custom Product Rollups" are both "Parents".  The source of the filter will be a dimension created in Analysis services, I guess this would be a dimension with multiple parents.