This could be the moment to bite the bullet and use Autonumbering. Start
here:
http://www.shaunakelly.com/word/numbering/OutlineNumbering.html
To use numbering at all levels it would be best to combine into a single
file. If you do keep separate files you could combine them once the main
editing is done using Insert File or you could, with extreme care and
following Steve Hudson's instructions, use Master Documents for the final
assembly.

Signature
Margaret Aldis - Microsoft Word MVP
Syntagma partnership site: http://www.syntagma.co.uk
Word MVP FAQ site: http://www.word.mvps.org
Thanks for your reply Margaret.
I read Shauna's article before I posted. I could not see a section which
solved my problem. Could you be more specific please?
>To use numbering at all levels it would be best to combine into a single file.
(I need 4 Levels of outline numbering max).
The client would love a single file but I assumed that 600+ pages would be
more than Word could handle. Are you implying that Word could handle a single
600 page document safely (it has over 3,000 hyperlinks and cross-references -
not my doing!) ?
If so, my (relative) external hyperlinks in each chapter to other chapters
may need to change to internal hyperlinks to Heading 1s. How could I convert
them sensibly/safely/speedily? (Keeping in mind that they want a single
printed manual as well as some online version for daily use).
Cheers,
Gerri, Tech Writer
Australia
> This could be the moment to bite the bullet and use Autonumbering. Start
> here:
[quoted text clipped - 60 lines]
> >
> > Brisbane, Australia
Suzanne S. Barnhill - 14 Oct 2005 16:59 GMT
Word has been known to handle documents upwards of 10,000 pages. How
comfortably it handles a 600-page document will depend a lot on how much RAM
and free HD space you have.

Signature
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
Email cannot be acknowledged; please post all follow-ups to the newsgroup so
all may benefit.
> Thanks for your reply Margaret.
>
[quoted text clipped - 82 lines]
> > >
> > > Brisbane, Australia
Gerri - 17 Oct 2005 02:38 GMT
Thanks Suzanne & Margaret!

Signature
Gerri, Tech Writer
Australia
> Word has been known to handle documents upwards of 10,000 pages. How
> comfortably it handles a 600-page document will depend a lot on how much RAM
[quoted text clipped - 96 lines]
> > > >
> > > > Brisbane, Australia