Adding a data collector
A data collector records the parameters and results of a simulation object.
You can add a data collector on a task. The collector created is attached to the scenario in progress. You can then modify task parameters only for the scenario. Data relating to this task is then calculated and displayed in the simulation. When you remove a data collector, the task reverts to its initial values.
To add a data collector to a task:
Select the task in the simulation editor and click the Add data collector button 
See also Data collector.