pagenumbers and the -s (no cross references) option

[Jürgen H . Havix]

Hello,
To get a quick overview on the layout(book), I compile
the document with -s. For the final layout, I compile
with -r5 or similar, which is very handy.
But the layout in both cases is diffrent:

With the -s option, I get ?? instead of pagenumbers.
OK, but although I have

@IntroOddFoot   { @Centre @PageNum      }
@IntroEvenFoot  { @Centre @PageNum      }

in the setup-file the "??" are written to the top of the page and
they seem to take up a little bit more space, because the last line
of every page is then written to the next page.
(Additionally I get ?? on @OnTitelPage, where normally no
Pagenumbers show up, but thats no real problem)

So a quick layout-overview is somewhat limited for me.
Maybe the code could easily be changed so that the layout
is kept with or without the -s option.
George