in the toolbar. If you're currently editing a variable, it will open on that variable; otherwise, you'll be asked which variable to open on. If the current variable is arrayed, you'll be asked to select an element.Use the Causal Lens to see the behavior of a variable, and the things that contribute to that variable's behavior. The Causal lens displays a comparative graph with raw scaling, so you can see what changed and when it changed, as clearly as possible.
To open the Causal Lens, select Open Causal Lens from the Window menu, or click on in the toolbar. If you're currently editing a variable, it will open on that variable; otherwise, you'll be asked which variable to open on. If the current variable is arrayed, you'll be asked to select an element.
The Causal Lens will open:
The Causal Lens shows a variable, and the other variables that cause it. If there are a large number of causes, there will be a scroll bar to make all of them visible. For flows, implicit causes that result because of non-negativity or capacity constraints will be shown.
Drag the handles of the slider (
) to change the time range over which values will be displayed. You can Narrow this range are much as you like by dragging these handles toward one another. After doing this click on 
to refine the granularity of the handle movement. Repeating this will allow you to view values at specific DTs. Click on 
to view values for the entire run. The range viewed applies to all graphs displayed in the Causal Lens.
Note The if the Results Panel is open when you open the Causal Lens then the time range settings from the Results Panel will be used in the newly opened Causal Lens.
The causes for a variable may include other variables that were used to initialize the target variable as well as other variables that are constants. These variables do no have any effect of the behavior over time of the target variable and can be excluded by checking the Dynamic causes only checkbox. When you do this the graphs shown will be filtered to remove the non-dynamic causes for all results in the Causal Lens.
You can scrub across a graph by dragging. As you do this, the values for all the graphs in that column will be displayed.
Click on any of the causes to see its causes in turn. The graphs will appear to the left. The graph you clicked on will remain highlighted to help you visualize the path of causality.
If you click on something in the Causal lens that is already displayed, you will see a message:
Clicking yes will clear the content of the Causal lens, and display the indicated variable and its causes. Clicking no will continue to add content to the causal lens.