+The Breakpoints are rows or columns after which there is a page break;
+for example, a row break of 1 requests a page break after the second
+row. Usually no breakpoints are specified, indicating that page
+breaks should be selected automatically.
+
+The Keeps are ranges of rows or columns to be kept together without a
+page break; for example, a row Keep with @code{offset} 1 and @code{n}
+10 requests that the 10 rows starting with the second row be kept
+together. Usually no Keeps are specified.
+
+The PointKeeps seem to be generated automatically based on
+user-specified Keeps. They seems to indicate a conversion from rows
+or columns to pixel or point offsets.
+