Issue of Automatic Payment Program

Dear All,

I have an issue in APP where i have many house bank but all house bank is assigned to 1 payment menthod.and all bank are in ranking order 1 to 10.

Now issue is if i run APP and want to pay to some vendor system will pick bank from ranking order 1 but client want to pay from bank in rank 10.

they dont want to edit proposal for each line item manually.

Kindly suggest is there any way out for this.

Regards

Shayam