Hi Mustafa and thank you very much.
This is not exactly my problem because I don't need to fill the xref3 area valuation with any value. In fact, I need to fill it with the same value as the original document has.
I have found that filling this table V_FAGL_FCBAL I can achieve that fields I want are automatically populated in the valuation document with the values in the original document but It is not working for me (or I am doing something wrong...) maybe because I use transaction F.05 not FAGL_FC_VAL.
Please any help is appreciated.
Best Regards