When you click a Filter Group entry on the Management > Linguistic Tool Setup > Filter Groups Setup > Filter Group: <group> page, the Edit Filter Group Entry dialog appears. You can change the MIME type, filter, and filter configuration for the entry.

When the value of the Filter selection for a MIME type is “Not Translatable”, the “Filter Configuration” column is blank for that entry. If the filter resolution process finds that a MIME type is set to “Not Translatable,” it treats assets of that MIME type as not translatable.