how to restrict vendor line items to be picked to 6 in f110 payment run?

Hai

how we can allow F110 programme to generate a clearing document for every 6 line items.Means if a vendor has 15 open items which are due for payment at the time of Automatic Payment Run . The System should generate 3 clearing documents. Means the split up should be 663. Means for the first 6 open items (1-6) one clearing document. For next 6 Open items (7-12) and for the last 3 Open Items(13-15) , One clearing Document to be generated.

Kindly Advice me. Surely Iam going to reward the ponits.

Thanks In Advance, Have A Great Day

Akash Narayana