Print multiple order through IW37N

When I select multiple order operations for print, then all the operations get printed. For example if there are two order ORD1 and ORD2. ORD1 has 3 operation and ORD2 has 4 operation. When I select one operation of each order and print it, then all operation get printed.

Please suggest me to resolve this problem.

Regards

Vivek