The Multi-Function Button
The button in the upper-right corner of the iTunes player changes appearance and functionality depending what is selected in the Source pane and if the iTunes visualizer is active. Since it does so many different things we call it the Multi-Function button. Following are its various states.Browse:
When you click on Library in the Source pane, the Multi--Function button becomes the "Browse" button. Click "Browse" and the top section of the iTunes window displays two new panes for browsing: Artist and Album. Select any item (or multiple items) in these two panes and the display below will show only songs that match the selections above. When you've located the desired song or album, you can double-click it to play immediately, or drag the selection straight from the Browse results list to a playlist in the Source pane.

When you click on a CD icon in the Source pane, the Multi--Function button becomes the "Import" button. "Import" copies selected songs into your iTunes Library. See more about importing on pages 102103.

When you click on Radio in the Source pane, the Multi--Function button becomes the "Refresh" button. Click the "Refresh" button to check the Internet for the latest radio listings available through iTunes.

When you click on a playlist in the Source pane, the Multi--Function button becomes the "Burn Disc" button.

To burn a CD
Options:
If you activate iTunes visual effects (click the Visualizer button shown below), the Multi-Function button becomes the "Options" button. Click "Options" to present the "Visualizer Options" window, shown below. You can choose to display the animation frame rate, cap the animation frame rate at 30 frames per second, always display the song information, and set a faster display or a better quality display. See pages 114117 for details about the visual effects.
