I need to print 2 pages in a sheet and change the printing order, e.g.,
print the pages 8, 1 (first page front) ; 6, 3 (second page front), 2, 7
(first page back) and 4, 5 (second page back).

front back
page 8 - page 1 page 2 - page 7
page 6 - page 3 page 4 - page 5

so I will fold the pages and form a note-book and the pages will be in the
correct order.