Apple Logic Express 9 - Manual (Page 327)

Column view offers a standard Mac OS X column file directory that is hierarchically
separated into All, By Genres, By Instruments, By Moods, and Favorites search criteria.
Category columns
To browse for Apple Loops in Column view
1 Click any of the category folders shown in the left column.
In this example, By Genres is chosen.
2 Click Electronic in the second column.
3 Click Beats in the third column.
327 Chapter 11 Adding Prerecorded Media