The Add Prediction Value window provides for inserting a custom environment or quality level directly from the System file when the model in use supports environments and/or quality levels. When you enter a new custom environment for Environment in an assembly’s Calculation Data pane or a new custom quality level for Quality Level in a part’s Prediction Data pane, the appropriate Add Prediction Value window opens. For more information, see Inserting a Custom Environment or Quality Level from the System File.