See One-Sided Combine.
1 Sided 2 Pages Combine 1 Sided 1 Page
1 Sided 4 Pages Combine 1 Sided 1 Page
1 Sided 8 Pages Combine 1 Sided 1 Page
2 Sided 1 Page Combine 1 Sided 1 Page
2 Sided 2 Pages Combine 1 Sided 1 Page
2 Sided 4 Pages Combine 1 Sided 1 Page