Forecast in Planning worksheet

Hi ,

I know well to use forecasting in planning , we have to use planning working sheet with MPS and MRP

Okay , if we need only to use forecasting and not diplay the net requiremnt of sales order or production .

Do we have any option in navision to use only the planning worksheet for forecasting ?

Or it look like unlogic procedure ? please inform me if you have any idea ?

rgds ,