Hierarchy Datasaource enhancement

Hi guys,

Does anyone already enhanced a standard datasource hierarchy?

I can't find any examples in SCN :/

What i would like to do is creating a new node in the hierarchy extracted (superior level)

Does anyone has an example?

Thanks.

Amine

PS: if not possible, i would like to create that node directly in BW via an abap code, but i can't find any examples either.