Inserting the cost center in CJR2

Hi,

I need to add the cost center in CJR2 layout in order to plan costs on them.

Actually we are using:

WBS

Cost Element

Functional Area (FM Module)

Fund (FM Module)

I've tried to modify the layout, but I'm not very expert on this part and I cannot solve this request.

Is it possible? How to do that?

Thanks