ChapterStyleLevel Property
Returns or sets the heading style that marks a new chapter when chapter numbers are included with the specified caption label. The number 1 corresponds to Heading 1, 2 corresponds to Heading 2, and so on. Read/write Long.
Note The IncludeChapterNumber property must be set to True for chapter numbers to be included with caption labels.
Example
This example formats the table's caption label to include a chapter number. The chapter number is taken from paragraphs formatted with the Heading 2 style.
With CaptionLabels(wdCaptionTable)
.IncludeChapterNumber = True
.ChapterStyleLevel = 2
End With