Hi
In order to pay out of F111, you would need to generate a payment request indeed. Depending on how you are managing the loan, you could also create directly from FI-Bank accounting a payment request againg GL (RVND/FIBLFFP) or against business partner by use of repetive code (OT81).
How are you managing the loan at the moment? CML or TRM?
Hope that this helps
Regards
taro