Apple Compressor 3 - Manual (Page 337)

2 In the Destinations tab, select the destination you want to copy, then click the Duplicate
button.
Duplicate button
A new entry appears in the Destinations tab with Copy appended to its name. This
destination is identical in all other ways. Rename the duplicate destination as appropriate.
The duplicated
destination
Creating Destinations for Use with DVD Studio Pro
When you are encoding video and audio files for use in DVD Studio Pro, you can make
importing and using the files within DVD Studio Pro easier by creating a custom destination
for them.
337 Chapter 27 Creating and Changing Destinations