AX 2012 R3 demand forecasting add a new datasource

Hi,

My requirement is I want to add a new data source for the demand forecasting in AX 2012 R3. I have to add a new checkbox for new datasource in demand forecasting parameters and if the check box is selected then data should appear from new datasource in the excel sheet.Can anyone help?

Thanks,

Surbhi Agrawal