Time Dimension rollup to yearly total issue

Hi All,

I am creating a input schedule which will have monthly value constant for all the months. When i put total in IP it aggregate all the values.

My requirment is to have Month1   value in total - not aggregated value. Values are for stat account and i can set any Account type to accomplish this .

for instance

Month 1           Month 2       Month 3   ------  >>>>>> Month 12          Year Total 

2                       2                   2                                2                       24----- I need 2 in Year total

Should i consider to write local member formula to accomplish this. We are on BPC 10 Netweaver

Thank you

Neil