Calling HANA procedure from BW Transformation in BW on HANA

Hello,

I am working on BW on HANA. I want to call a HANA procedure (written in HANA in BW Schema) from an ABAP routine in a BW Transformation.

What we already know is calling an SQL Procedure from ABAP is possible and there is a step-by-step guide for the same (http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/f06342ec-60a0-3010-b8aa-9ece92ae0ee5?QuickLink=index&overridelayout=true&58540404244535)

But, in our scenario-

1. Can it be called from a BW Transformation?

2. Can we write a procedure in BW Schema?

3. If yes then, is it possible in BW on HANA (platform edition)

Thanks,

Chetana Rane