Profit center hierarchy nodes assign to infoobject

Dear Experts

I have Profit Center hierarchy loaded from R/3 to BI 7 using 3.x transfer rules method.

The hierarchy is loaded using the standard business content.

However, the nodes or groupings of the profit centers are not assigned to the relevant infoobjects in BI.

For example,

the profit center groupings should be :

1. groups of profit center = zsection
2. groups of section = zdept
3. groups of department = zdiv

From the business content, the hierachy loaded from R/3 to BI is in node and profit center form.

How can these different levels of the standard hierarchy be assigned to corresponding profit center hierarchy nodes in BI called zsection, zdept, zdiv?

Via BW3,x method, how to do that?

If via BI 7, I think must create a transformation ?

Please advise.

Thanks.

Regards
Pascal