Sorry, I misunderstood your description. "System overview" and
"Atmosphere" are clearly headings (at different levels). But, as I
wrote, what you need are two different (possibly even more) caption
labels, that reference different heading levels.
Alternatively, stay away from the Caption dialog box and create the
captions manually, for example as suggested by Cindy Meister.

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Stefan Blom
Microsoft Word MVP
> > Make sure that you use different caption labels for "System" and
> > "Atmosphere"; then you can set different numbering options for them.
[quoted text clipped - 8 lines]
> level of the paragraph preceding or referencing it - [Usually the
> paragraph above]
Stefan Blom - 12 Jan 2007 14:13 GMT
> for example as suggested by Cindy Meister.
Correction: as suggested by Shauna Kelly.

Signature
Stefan Blom
Microsoft Word MVP
> Sorry, I misunderstood your description. "System overview" and
> "Atmosphere" are clearly headings (at different levels). But, as I
[quoted text clipped - 19 lines]
> > level of the paragraph preceding or referencing it - [Usually the
> > paragraph above]