CREATE CALCULATED MEMBER with setting additional custom property value

Hi.

I try to create a calculated member in a dimension and have to set the custom attributes from the dimension also. Actually every attribute is empty. I tried to use the following expression described here: http://msdn.microsoft.com/en-us//library/ms144787.aspx

Property_Name = Property_Value.

Data Tools aka BIDS tells me that the property could not be found. So could somebody help me with an example or have an idea how to set attribute values of a calculated member?

Cheers,

Nils

PS. At a first step it would also fine if somebody could confirm that this is the right method to set attribute values of a calculated members.