IW31 - Fill Components and Objects Tab automatically

Dear experts,

I have a requirement. I need to fill automatically tabcontrol in tab Components & Objects at corrective maintenance creation from IW31 transaction when user fill value in Functionnal Location.

I have debugged all process when I add manually component and material in object tab, but the process is complicated, and I don't know if it's possible to fill automatically these table when user arrive in screen after fill Functional Location.
I have tried to fill many internal table in debug, but tables at screen are always empty...

Do you think it is possible or do I have to look for another solution for my cllient ?

Thank you in advance for you help.

PS : I work ib