Urgent please!! Disaggregation Key fig in DP planning area

Hi Gurus,

I have one keyfigure call ZABCD and this keyfigure is based (Proportionally disaggrigate ) of two different key figures values

ZMAMN and ZNUMB

1. I just went to planning area and wanted to assign the two disaggrigation key figure to one key fig and can anyone tell me how to do that please.

It will be really great if i get the answers.

Thanks & Regards,

Raj