In a series of long documents, text on portrait pages alternates with tables
on landscape pages. Often the tables are long and contain so many endnotes
that they run on for several pages. (They are endnotes rather than footnotes
because there are actually two tables and the notes are wanted at the end of
the section, not right under the first table, but the same problem occurs
with footnotes.) Here's the problem: The section break/next page occurs at
the end of the (landscape) tables. When the endnotes spill over to other
pages, those page already exhibit the portrait orientation of the next
section, but the headers/text/footers still behave as if the margins are 9
inches apart. I can select the text and pull the margin in to make it look
right, but the right-justified part of the header and footer is still off the
right side of the page. I can't find the right combination of formatting to
get the headers/footers right in both sections without introducing unwanted
blank pages.

I found the solution just after posting: Insert a continous break immediately
before the next page break.

"Blue Ridge Editor" wrote:

In a series of long documents, text on portrait pages alternates with tables
on landscape pages. Often the tables are long and contain so many endnotes
that they run on for several pages. (They are endnotes rather than footnotes
because there are actually two tables and the notes are wanted at the end of
the section, not right under the first table, but the same problem occurs
with footnotes.) Here's the problem: The section break/next page occurs at
the end of the (landscape) tables. When the endnotes spill over to other
pages, those page already exhibit the portrait orientation of the next
section, but the headers/text/footers still behave as if the margins are 9
inches apart. I can select the text and pull the margin in to make it look
right, but the right-justified part of the header and footer is still off the
right side of the page. I can't find the right combination of formatting to
get the headers/footers right in both sections without introducing unwanted
blank pages.