doc_sequence_value of checks in ap_selected_invoice_checks_all

Hi All, 

I am haveing few queries related to printing check voucher number on Payment Advice through Format Payments functionality.

heres the scenario

Payment Batches - when user tries to make the batch payment he needs to select the invoices, when the invoices is selected and Built the batch, the batch which is selected can be seen in ap_selected_invoice_checks_all table where the checkrun_name and other fields can be seen, but there is no voucher number or doc_sequence_value of the checks these fields can be seen in ap_checks_all table but the data moves in ap_checks_all table once the payment is done and the process of batch payment is completed, during this process the check and the Payment Advice (