How to reflect the equivalent of the relational IN operator in MDX

I need to filter a set, based in another attribute hierarchy.

So I am looking for something like

filter(Time.Months.children , Time.Months.currentmember.label in ({Timen.MonthName.Children})

The list is generated dinamycally, so the OR approach wouldn't work (unless I write 12 expressions.

Any ideas ?

Thank you

Alejandro Leguizamo

SQL Server MVP

Could you give an example with data, to help clarify? If this is a case where dimensions [Time] and [Timen] have identical structure (eg: role-playing dimensions like Date and ShipDate in Adventure Works), and you want the set in [Time].[Months] hierarchy, equivalent to some set in [Timen].[Months], then LinkMember() may work, like:

Generate([TimenSet], {LinkMember([Timen].[Month].CurrentMember, [Time].[Month])})