Split TO number by Zone

Dear All

I would like to know that the system can split TO number separate by zone. I have a lot fo zone which have verious storage type for exemple 1 storage type (RET) have 4 row of storage bin (Ex. row A, B, C and D) So I want the system split TO number by zone or row which the system nomally suggest TO by storage type that is 1 storage type / 1 TO number but I do not want like this. Could every one advise me how to set or config in this case whether I have to use customizing program.

Please let me.

Thank you very much.