Change Hidden iTunes Preferences

Change Hidden iTunes Preferences allows you to invoke hidden iTunes preferences.
Hidden iTunes preferences:
- Show "Library" playlist.

- Changing view setting is global.
- Allow half-stars in ratings.
- Hide "Ping" buttons.
- Load complete iTunes Store preview before playing.
- Create playlists for purchased song collections.
- Play songs while importing or converting.
- Create file names with track number.
- Grid View Search results switch to List View.
- Option-click zoom button for Mini Player.
- Disable "elastic" scrolling behavior.