counters in header outlines

[Kevin]

I would like to create heading numbering as follows:

i.1 Table of Contents (H1)
(counter increase)
1.1
1.2
(counter increase)
2.1
2.2
2.2.a
2.2.b
(counter increase)
3.1 conclusion

Right now I'm using heading/outline numbering with the style:
1 Heading 1 (dummy style, not used)
1.1 Heading 2
1.1.a Heading 3

Is there a way to incorporate some kind of counter into heading
numbering? Also, can I have the table of contents start with i.1? I
could do that manually if necessary.

 

[Suzanne S. Barnhill]

You can't do this with a dummy style that's not used. You have to actually
use the style, though it can be formatted as Hidden or very small. See
http://word.mvps.org/FAQs/Numbering/ListRestartMethods.htm