When Additional Advanced Editing Options is selected in the Advanced preferences pane, you can independently link or unlink windows (including the Tracks area, Piano Roll Editor, Score Editor, and Event List) to control the relationship between what they display. For example, you could set up two Event Lists, one showing arrange regions, and the other showing their contents, then click a region in the first Event List to update the contents of the second one.
The Link mode options—Off, Same Level, and Content—allow you to control how information is displayed when working with related editor windows.
Choose View > Link, then choose one of the following:
Off: Unlinks the window from other windows.
Same Level: When selected, the editor window always displays the same contents as the window with key focus, and updates whenever the window with key focus changes. For example, if the Score Editor has key focus, in Same Level Link mode, the Event List displays the same data as the Score Editor (numerically, of course).
Content: When selected, the editor window always shows the contents of the region selected in the window with key focus. In this case, the display level is always one level lower than that of the top window. For example, if the Tracks area is the active window, any open MIDI editor shows the events of the selected MIDI region. You can also use Content Link mode in one Tracks area to display the folder contents of another Tracks area.
The Piano Roll Editor and Score Editor also include a Link button that you can use to set the Link mode, and view the current Link mode.
Piano Roll Editor: The Link button is yellow when set to Content. Same Level is not available.
Score Editor: The Link button is purple when the Link mode is set to Same Level, and yellow when set to Content.