How to include multiple values in mdx quey added in ssrs?

Hi,

I created a cube and ssrs having 2 parameter. First parameter is 'Universe' and second one is 'Advisor' and both are multi-valued para.
The second para is loaded from cube and I added mdx dynamically to set default values for it.

[Account].[Advisor].&["+Parameters!Universe.Value+"]".

But universe parameter is a multi valued and so i am forced to take any one of the value from it.
(like [Account].[Advisor].&["+Parameters!Universe.Value(0)+"]".

How can I resole this?.I need to set default value for 'Advisor' para according to the multiple values selected in 'Universe' para.
How can i set this using mdx query in SSRS?. Any idea?.

Any help is appreciated..

Thanks,
Nidheesh