You can enable multithreading for measure data disaggregation for a single,
        forecast-enabled plan in the Demand Management, Demand and Supply Planning, Planning
        Central, Replenishment Planning, or Sales and Operations Planning work area.
        - 
                In your work area, open the Plan Options page for your forecast-enabled
                    plan.
            
- 
                On the Demand tab, click Select Advanced Options.
                The Demand: Advanced Options dialog box opens. 
- 
                In Forecasting Control Parameters, in Parameter
                        Overrides, enter
                        enableParallelDisaggMeasure=true.
                
                    Note: You can enter multiple values in the Parameter
                            Overrides field provided you separate them with the number
                        sign (#). 
 
- 
                Click Done.
            
- 
                Save your plan.