BTE 1130 - How to fill XREF1 and XREF2 from MIRO to BSEG

Hi,

Could you explain what entries should be done in FIBF so I can achieve data on XREF1 and XREF2 inserted on MIRO, to be populated to the accounting document, in BSEG?

Please, I would appreciate an explanation of steps to be done in tranx. FIBF to achieve this. I think BTE 1130 can make it but I don´t know how to implement it on FIBF.

Thanks in advance

Kind regards