Or you can opt for the more efficient solution and create and apply a numbered style.Unfortunately, that can get you into even more trouble, if you don't know what you're doing.
It's an important part of most every document and users often spend a great deal of time applying formats.
The existing heading styles (Heading 1, Heading 2, and so on) are based on the Normal style. To edit Heading 1, do the following: At this point, you're ready to modify the Heading 1 style. The resulting Customize Outline Numbered List dialog, shown in Figure D, is the heart of this technique.
All you have to do is add a numbering scheme to the top heading style and watch the settings trickle down. This is where you'll define the numbering scheme for Heading 1 as follows: click OK — you still have to define the numbering style for the sublevels.
I don’t work with MS Word all the time, so I end up having to re-discover this trick each time. In fact, I’m basically cribbing the steps from here: The reason I’m putting it into my blog is so I know it’s here and can search a smaller field than the whole of the internet.
If you’ve any kudos, please send it to the original URL. The controls are different with earlier versions of MS Word, but I’m sure there is a way to map the steps to those legacy versions.