How can I change F0911 Mapping fields from Payments and Receipts

hello,

I am implementing Automatic Bank Statement processing in E1 9.2.3.3, I am using files format BAI2, I didn't have problems with configurations nor in process except with Automatic Bank Reconciliation.

The field used for match between F09617 vs F0911 is CKNU, in F09617 there is the Document number but in F0911 there is Batch Number from payment transactions and is not possible to get automatic reconciliation and the most quantity of payment transactions have the same document number.

I ask, How can I change the mapping of filed R1-Reference 1, and CKNU- Receipt number, from Batch number to Document number.?