BPC NW Script Logic - Aggregate members with same property

Hi experts,

I need to write a piece of logic to aggregate dimension members based on a property.

For example:

I have the Dimensions ACCOUNT and SEGMENT.

The account member is fix (e.g. ABC1000).

The SEGMENT dimension contains the following members and properties:

ID                         SEGMENT_GROUP

AU1000                GROUP1

BE2000                GROUP2

CE3000                GROUP1  

DE4000                GROUP2

The property SEGMENT_GROUP should be dynamic. That means that the user can create Groups by their own (e.g. GROUP_XYZ).

Now I need a script which calculate the following values:

(ACCOUNT ABC1000, SEGMENT AU1000) / (ACCOUNT ABC1000,  SEGMENT: all Segements with SEGEMENT_GROUP = GROUP1)

(ACCOUNT ABC1000, SEGMENT BE1000) / (ACCOUNT ABC1000,  SEGMENT: all Segements with SEGEMENT_GROUP = GROUP2)

(ACCOUNT ABC1000, SEGMENT CE1000) / (ACCOUNT ABC1000,  SEGMENT: all Segements with SEGEMENT_GROUP = GROUP1)

(ACCOUNT ABC1000, SEGMENT DE1000) / (ACCOUNT ABC1000,  SEGMENT: all Segements with SEGEMENT_GROUP = GROUP2)

It is not an option to write a static script logic statement. The logic should be dynamic.

Do you have any ideas?

Kind Regards and thank you

Tobias