I have touch controllers but "Add Touch" not preset in Device setup.

Hello,
I got a pair of engineering sample Touch controllers.  However, I can't figure out how to use them.  The sensor shows up, but I can't pair the controllers.  What do I have to do to make the "Add Left/Right Touch" prompt show up?  This web site (https://developer3.oculus.com/documentation/pcsdk/latest/concepts/dg-input-touch/) says "Note: If the Add Left Touch and Add Right Touch options do not appear, please contact Developer Relations.".

I can find nothing on this site resembling "Developer Relations"...

Any tips or clues about where to start?

Thanks,
K J