Mondrian failed to support subselects with arbitrary shapes

It looks like currently Mondrian failed to support some arbitrary shape "sub-select" queries. For example, as the following one, which is supported by MS Analysis Service.

SELECT NON EMPTY Hierarchize(
DrilldownMember(CrossJoin({[Store.Store_City].[All Cities],[Store.Store_City].[Store_City].Members},
{([Store.Store_Name].[All Store Names])}), {-{[Store.Store_City].[Hidalgo]}}, [Store.Store_Name]))
DIMENSION PROPERTIES PARENT_UNIQUE_NAME,HIERARCHY_UNIQUE_NAME ON COLUMNS FROM [Store]


So my question here:
* will Mondrian be going to support it in the near future?
* I'm not an expert in MDX, but could any one tell me what is the equivalent "non arbitrary shape" MDX (which's supported by Mondrian) of the above MDX query?

Thanks for help.