If it is a list style, do the following: In the Styles pane
(Ctrl+Alt+Shift+S), click the Manage Styles button. In the dialog box, click
the Edit tab. Locate and select the style name, and then click Modify to
display the Modify Style dialog box. Click Format, and then click Numbering
to modify any aspect of the numbering (you'll see a dialog box similar to
the Customize Outline Numbered List dialog of Word 97--2003).
If you didn't make use of a list style, just place the insertion point in
the first top-level heading of your list (for example, if this is numbering
attached to heading styles, place the insertion point in the first Heading 1
paragraph of the document). Then, on the Home tab, click Multilevel List |
Define New Multilevel List.