Creation of Hierarchial datasource in 7.0

Hello,

I want to create an extractor ( 7.0 ), for loading hierarchy into an infoobject. I came to know that its not possible to create Hierarchial datasource

in 7.0 flow ( possible only in 3.X).

still is it possible to create one through RSA2 transaction?

In RSA2, if i create a new datasource, there is a field DataSource Type--> and the F4 help gives an option of HIER ( Hierarchy nodes )

is it the right way to create one??

Thanks

Karthik