Business area field within Worklist screen? How?

Hi,

Our client needs to see Business area field within the worklist. Is this possible?

I see there is a BAdI - Enhancement of worklist items on display. Does anyone know if it possible to implement it through this BAdI? I refer of course in a layout of the worklist.

Please, provide a hint on how to achieve that field, bacause client is urging an answer.

Thanks in advance.