Hide column of same group in matrix

Hi,

I want to hide a column of same group.

(http://social.technet.microsoft.com/Forums/sqlserver/en-US/6b385f12-c431-4cde-99dc-eca3bc5df2bf/calculate-percentage)

I have the matrix as per the above link.So referring to the above link: in Amount Group - Amt and target is coming.I want to hide Amt column only

Thanks & Regards

Archana