Apple Final Cut Express HD - Manual (Page 958)

958 Part XI Project Management and Settings
To set an external editor:
1 Choose Final Cut Express HD > System Settings, then click the External Editors tab.
2 Click Set next to the clip type for which you want to assign an external editor.
3 In the Open dialog that appears, navigate to the location of the application you want
to use, then click Open.
The pathname appears next to the file type in the External Editors tab.
To clear an external editor:
1 Choose Final Cut Express HD > System Settings, then click the External Editors tab.
2 Click Clear next to the clip type from which you want to remove an external editor.
The path changes to <None Set>.
The path is shown
for the application
set to open still
image files.