Product costing Template - adding new function in Environments CTU6

Hi Guru!!

I need to create a new function in CTU6 (Define Environments and Function Trees) in order to have information stored in MBEW table and use them in CPT2 (Template).

The goal is to calculate a value for each material/plant and add that value during the cost estimate (CK11N / CK40N).

Could someone help me? How can I add a field of MBEW in CTU6?

Thank you very much in advance!!

Marco