Addition of a custom Key attribute to Supply Planning levels to enable TS Supply Planning

Hello IBP Guru's,

Is it imaginable to adhd a customized cardinal property to each the readying levels related to input/output proviso readying cardinal figures for e.g. WKPRODCUST and WKPROLOCCUST? If truthful what is the enactment to bash truthful and alteration TS proviso readying astatine this cardinal customized attribute?

Thanks,

Mangesh