The first thing to know about using a vis window is how to change window modes. A window mode is a state in which the vis window behaves in a specialized manner. There are four window modes: Navigate, Zoom, Lineout, and Pick. Vis windows are in navigate mode by default. This means that most mouse actions are used to move, rotate, or zoom-in on the plots that the vis window displays. Each vis window has a Popup menu that can be activated by clicking the right mouse button while the mouse is inside of the vis window. The Popup menu contains options that can put the vis window into other modes and perform other common operations. To put the vis window into another window mode, open the Popup menu, select Mode and then select one of the four window modes. You can also change the window mode using the vis window's Toolbar, which has buttons to set the window mode. You can find out more about the Popup menu and Toolbar later in this chapter.