You cannot, the XD01, FD02 transactions work with only one record at most for KNA1, KNB1 and KNVV, so those are only single parameters of the method.
If you want to save other KNVV records during SAVE, create a RFC enabled FM which call SD_CUSTOMER_MAINTAIN_ALL, BDC or similar tool, and in a save method like CUSTOMER_ADD_DATA->IF_EX_CUSTOMER_ADD_DATA~SAVE_DATA call this FM IN BACKGROUND TASK.
Regards,
Raymond