> concretely?  Does it look like Info cross references, or is it different?

I think it is helpful (and possibly less confusing) to distinguish these
links from the regular "Info links".

> How do you follow one of these links?

Currently you can use the same keys and mouse clicks to follow and open
them as for the Info links.  I feel this is intuitively and is working
well in practice.

(I'm considering the idea of Drew Adams to close the appearing *Help*
window with a second click or <RET> press, though I've no idea how to
achieve this at the moment.)

    Dieter

-- 
Best wishes
H. Dieter Wilhelm
Zwingenberg, Germany