The video view has a fixed, stable video image. All tracks, and the axes and tape measure, are marked and/or edited in this view. To facilitate accurate marking, a popup menu (see Figure 16.9) allows you to Zoom (magnify) the video image up to 8x. The popup is displayed by rightclicking the mouse (control-click on Mac); the zoomed image is then centered on the click point. The popup menu also provides quick access to track menus and Tracker help