How can I add dual RDF ports while setting up SRDF-S replication in VMAX via vApp manager

All,

I have setup a new SRDF connection in the environment, during the process I selected RDF ports of the local array and the remote array.

However I was only able to select single RDF ports on the local as well as the remote array. Could you tell me why is that ? and how can I add the second RDF port on the local and remote array for SRDF?

Below are the some details

Symm frame : VMAX 250 AF

Hypermax version (Enginuity Version) : 5977

Any details or response will be appreciated !!

BR/Jasdev