SSH authentication agent for SSH Port Forward sessions

In the Windows version of RDM, if I go to the Advanced settings for my SSH Port Forward I can choose the option to "Use SSH authentication agent". This is not available in the settings for the Mac version. That setting does exist on Mac for the SSH Shell Session, but not the SSH Port Forward. See screenshots. I may be wrong, but I would think that if the functionality exists for one session type, it should be relatively trivial to extend that functionality to another session type.

I would like SSH authentication agent to be available to any SSH session on the Mac so I can load my private key via agent and no longer have to embed it into my private vault.