production order settlement

Dear friends,

My production order runs for 15 days. My factory calender is split by periods. So in material master MRP3 view i have defined my fiscal year variant and period indicator as "P".

My production order quantity is 1000. Out of that 1000 , i have completed 500 in period 5. The remaining 500 i have completed on period 6. Now wants to settle the same one production order to two different periods (That is period 5 and 6 ).

How to do that?

Thanks

Senthil