PPM update "Financial view" for Item process 'O - Others'

Hello Experts,

My requirement is to update PPM "Financial view" for Item process 'O - Others' with customized value's; 

As per SAP documentation;

• for Item process 'O' : No specific process followed. You can define your own process that requires custom coding.

Can you please advice on how to achieve this requirement.

I am trying to update via BADI /RPM/FIN_CAP_PLAN method MODIFY_FIN_PLAN which will trigger from Program "/RPM/FICO_INT_PLANNING" but I am not sure how to map the customized values to this method.

Thanks,

Karthik