How can we create Cash Advance using J0400001 (processVoucher)

Hi,

I want to create Cash Advance scenario while creating new voucher wherein it creates two lines with +A and -A amount.

Normaly in JDE we set PO values of P0411  Prepyament->GlOffset to PREE and it automatically creates two lines one with positive amount and one with negative. We want to achieve same using BSSV.

Also is there any way we can bypass AccountID or while GLDistribution tag while creating voucher?