A header row is w:tblHeader on the row, the same thing ODF spells with
<table:table-header-rows>. An index's leader and tab stop ride its first row,
the level styles are a family per kind, and the stop is written even with no
page number running to it. A box carries its own ring (w:bodyPr/@lIns) and
where it sits across the column when behind the text.
A section past the first now names its zones even when blank: a sectPr
without a headerReference is Word's Link to Previous, which put a chapter's
running head on the pages a blank section was meant for.