That was Eli's point -- it doesn't work with C-h -- please try it.

C-h
;; Shows first "C-h (Type ? for further options)-", then after a secondthe
;; which-key pop-up occurs.
C-h
;; Now the C-h help help buffer will be shown.
C-n
;; Now you're viewing the NEWS file.

I.e., you cannot paginate through the commands if you are issuing C-h
and have which-key-mode on.

> Btw, did you figure out how to scroll to the next page? In
> particular, after typing "C-h" that shows the first page of Help
> commands?

Pagination is done by hitting C-h C-n and C-h C-p, or C-h n and C-h p
when the which-key popup is active.

That was Eli's point -- it doesn't work with C-h -- please try it.

C-h
;; Shows first "C-h (Type ? for further options)-", then after a secondthe
;; which-key pop-up occurs.
C-h
;; Now the C-h help help buffer will be shown.
C-n
;; Now you're viewing the NEWS file.

I.e., you cannot paginate through the commands if you are issuing C-h
and have which-key-mode on.