You can preview command results using the Desktop Module Editor. This feature allows you to perform the same functions as on the desktop, but with the added benefit of being able to preview and, in most cases, modify the effect before it is applied to the clip.

The Desktop Module Editor is available for the following Processing commands:

• Average
• Compound
• Flip
• Logic Ops
• Auto Matte
• Monochrome
• Negative
• Posterise

To apply a command using the Desktop Module Editor:

1. In the Processing menu, click one of the processing commands.
2. Select the source clips.

   When the Desktop Module Editor is available for a command, an E appears on the button.

   
   

3. Click the E on the command button.
4. Select a destination.

   The Editing Module appears. Use the controls in the editor as you would on the desktop.