LinkedStyle Property
Returns or sets the name of the style that's linked to the specified ListLevel object. Read/write String.
expression.LinkedStyle
expression Required. An expression that returns a ListLevel object.
Example
This example sets the variable myListTemp to the first list template (excluding None) on the Outline Numbered tab in the Bullets and Numbering dialog box (Format menu). Each level in the list has a matching heading style linked to it.
Set myListTemp = _
ListGalleries(wdOutlineNumberGallery).ListTemplates(1)
For Each mylevel In myListTemp.ListLevels
mylevel.LinkedStyle = "Heading " & mylevel.index
Next mylevel