The results panel lets you see graphs of results from the model simulations you've made.
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.
For more information on working with the Results panel, see Results Panel