The difficulty involves a table made of two columns (left/right) themselves divided into 4 further columns (a,b,c,d). The content should flows from the left four columns (a,b,c,d) on a page to the right four columns (a,b,c,d) of the same page before going on to the next pages, themselves divided in the same way. The page header on the next pages is slightly different from the one found on the first page containing the table.
Is this possible with your XEP ? Could you give me an rough idea how to implement it and test it ?