One Planned order in Make To Stock (MTS) Logic for each Sim. dependent reqmt

Dear Gurus, i'm facing a problem in a MTS scenario (NB: MTO can not be taken in account). Customer requirement is to manage a planned order for each requirement, even if requirements have the same delivery date.

i.e:

01.04.2014 SimReq -1

01.04.2014 SimReq -3

After MRP run, i need:

01.04.2014 Planned Order +1

01.04.2014 Panned Order +3

Anyone can help me? Stefano