Is it possible to use XSLT 2.0 processor in PI Dual stack installation?

Hi Gurus!

Recently I've tried to use XSLT 2.0 transformation in my PI 7.4 Dual stack system.

There comes error during mapping execution:

javax.xml.transform.TransformerException: java.lang.RuntimeException: Unsupported XSL element 'http://www.w3.org/1999/XSL/Transform:for-each-group'

at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:765)

As we can see, Xalan processor is still used though I've imported jars for Saxon processor in according SCW and set parameter com.sap.aii.ibrun.server.mapping.externalTransfomer to "true" in NWA.

Does it mean that this feature works only on PI AEX/PO installations?

Or did I miss anything?

Regards, Evgeniy.