The Result Viewer windows are in the upper right area of the interface and display the results from selecting something in the Explorer Tree area. You will have the option in this are to display the results in a variety of formats. Currently, there are 2 main tabs on "Result Viewer" window:
Viewers in Result Viewers have some right click function that built in into them. Here are some examples that you may see:
Here's one of the example of a "Result Viewer" window: