Apple Logic Pro 9 - Manual (Page 815)

2 Select checkboxes in the “Write Automation for” section.
The Write Mode Changes To menu determines the mode that Logic Pro switches to after
a Write operation has been executed.
You’ll rarely need the Write mode when working with the track automation features of
Logic Pro. It’s mainly there to complete the selection of automation modes. It’s easier to
erase automation data by choosing Track > Track Automation > Delete all Automation
on Selected Track (or Delete All Automation, respectively).
In earlier analog mix automation systems, Write mode was the only way to erase
automation data from tape when beginning a new project. The Track > Track Automation
> Write to End and Write to Right Locator commands are self-explanatory. One writes
track automation data to the end of the project, and the other to the right locator position.
Writing Track Automation Data
You have the following write options for track automation data:
• Move any fader or control of the selected channel strip with the automation mode set
to Touch, Latch, or Write. In real-world usage, you’ll rarely (if ever) use the destructive
Write mode, which erases all automation data. The standard write modes are Touch
and Latch.
815 Chapter 28 Working with Automation