ATHENA can be used successfully by using relatively few of its capabilities. For instance, it's fairly obvious that you can import data by opening a file using the File menu, change a parameter value by editing the number in one of the little boxes in the main window, or plot data by clicking one of the buttons labeled with the letters E, k, R, or q. There is, however, a lot more to ATHENA at the level of its user interface. Part of making the leap from beginner to expert is learning about the various user interface features.
Need chapter on contents of Monitor menu