OAYR - Assign Cost Centers Field is not appearing

Hi GURUS N EXPERTS,

I am facing a problem. When I use T-Code OAYR 'Specify Intervals and Posting Rules'. Here I am unable to see the field Assign Cost Centers

While I am using "Field Status Variant - 0001 Under OBC5", Field Status Group - G001 (To Define Depreciation Account in FS00) and For G001, Cost Center Field - Optional Entry in OBC4 (Define Field Status Variants)".

Please help me where I m wrong and what I have to change.

With thanks.

DSC