[Lisa Wilke-Thissen]

"Stefan Blom" wrote

A safer approach would be to set up a template with your style-based
numbering. You could then easily create templates based on the
template
whenever you need that particular formatting.

if people are used to use styles consistently, and if people most time
avoid direct formatting, in a document this option can be helpful:
Word 2003: Tools | Templates and Add-Ins | Automatically update
document styles
Word 2010: Developer tab | Document template ...
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Regards from Germany
Lisa [MVP Word]