OK, you got me. I missed the section on page 13, "Linking an Additional Base and Hand-Held to the Network. I skimed it, and missed that if you hold (for 4+ seconds) the <HOME> button on the new Hand-Held it will link with the Network. (More steps of course, but irrelevant to this discussion).
"The <HOME> button has special uses explained in this guide."
It refers to the HOME button to select additional scenes, by pressing once, and deselect a group of scenes by again pressing it.
THEN the manual goes into a great deal of discussion on the InTouch In Wall Master Controller, never to return to the CB5500R Hand Held Controller.
That is until the Troubleshooting section: "Press the <HOME> button to wake the Hand-Held (if it has gone to sleep while setting up a scene).
But I am correct in that it never goes into any discussion of Primary and Secondary controllers, HAwhatevers, TE, GE, gewiz.
Thanks for directing me back to the source. The answer WAS there.