Sorry, guys...I was in dork mode. I wasn't looking at the LCD after attaching the lens. As we say here in North Carolina, "if it was a snake it woulda' bit me!"
When you attach an old lens the control opens automatically.
There is no menue item.
It's true the input screen opens automatically when a manual lens is attached. However, there *is* a menu item to change the focal length afterwards if needed: Menu -> Rec. Mode -> Shake Reduction. It will not be available unless a manual lens is mounted.