Aggregation of Purchase requisition in Optimizer

Happy Diwali to all,

Can we club the purchase requisitions generated from SNP optimizer to one requisition for month, as SNP optimizer will plan for optimize the solution by generating requisitions with qty 2,3, or 7 and 8 qty, Now i want to club all the requisitions to one requisition to total quantity 20 Nos.

Can any body address me how can i tackle the situation, as i want the clubbed requisitions to book the vendors capacity for 6 months or year with higher quantity.

Regards,

Amol Chavan