The Object Color Control tab allows you to work with the colors in your job by interacting with the preview image of the job.
Check the Preview box so that the preview pane updates to reflect any color mapping and editing that you do.
See Also
Using Object Color Control
Inspecting Colors
Selecting Colors
Enabling or Disabling Color Mapping Settings
Editing Colors
Adding New Colors
Resetting Color Values
Saving Object Color Control Settings to a Preset
Applying Object Color Control Settings from a Preset