Navigator Palette Tricks
You can use the Navigator palette as command central for all scrolling and zooming (see Figure 5). We rarely use this palette because we zoom much faster with the keyboard shortcuts, but if you get along with the Navigator palette, don’t let us stop you from using it.
Figure 5 Navigator palette.
A thumbnail of the image fills most of the palette, with a red frame marking the contents of the active window. (If your image has a lot of red in it, you might want to change the frame color by choosing Palette Options from the Palette menu). Dragging the outline pans the contents of the active window. Command-dragging (Mac) or Ctrl-dragging (Windows) lets you define a new outline, thereby changing the zoom percentage.
The percentage field at the lower left of the palette works exactly like the one at the lower left of the image window. You can click the Zoom In and Zoom Out buttons instead of using the keyboard shortcuts for zooming. David’s favorite feature in this palette is the magnification slider, which lets him change the zoom level dynamically, but you can also do that by scrolling a mouse wheel while pressing Option (Mac) or Alt (Windows).