configuring ABAP Mapping

I am working on SAP XI 3.0

As per documentation i add the entry in

http://<hostname>:<portid>/exchangeProfile

com.sap.aii.repository.mapping.additionaltypes

as e.g.

R3_ABAP|Abap-class;R3_XSLT|XSL (ABAP Engine)

but i.e. not seen in the

httP://<hostname>:<portid>/rep/support/index.html

All Properties options

so what else configuration required

because one of its sentence says that:

Technically, the Integration Server calls the ABAP function CALL_PARTNER_MAPPING with the additional mapping type name as destination. Therefore, the additional mapping type name must be registered as RFC-Destination in the Integration Server, too.

so where to define RFC-Destination and how.

Thanks & Regards,

Gaurav Jain