PCP with RAC simulation of node affinity in EBS 12.0.6

Hi ,
We are on 12.0.6 with sindle node database with PCP configured.
Migrating to 2 node RAC with 12.0.6 with PCP.
Architecture is
3 node application tier
2 node RAC DB.
all middlet tier services are enabled on the all 3 app nodes. concurrent managers are distrubuted across the 3 application nodes.
Is any way that we can cofigure the managers running on a particular node should always connect to specific RAC instance.
In 12.1.1 it is RAC affinity but in 12.0.6 how do we achvie it.
Please advice. Your help is highlt appreciate.
Thanks
Jana.

also as mentioned by Srini, even Oracle as suggested the same method when I raise a SR,
From note: 1070621.1
What is being requested is called Request Instance Affinity or Node Affinity. This feature is available on EBS Release 12.1.1; see Note 566521.1 "Oracle Application Object Library Release Notes, Release 12.1.1" and Note 1129203.1 "How to run a concurrent program against a specific RAC instance with PCP/RAC setup?"
This feature is not available on earlier releases of EBS, however. As per a Concurrent Processing Developer the same effects can be simulated:
"If configured for RAC and the manager(s) connect to a specific instance ONLY (meaning not using _balance), then setup a manager to run on a particular node and connecting to a particular instance. That means, make certain the program runs on that manager only by inclusion / exclusion rules."
Thanks
Jana

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