When you import media into the Media Bank, often it displays only the file-type icon. MixEmergency 2.6 adds a right-click pop-up menu to the Media Bank that allows you to automatically generate a thumbnail image for these items.
Selecting Generate Thumbnail will generate a thumbnail image for the media that you've selected, while selecting Generate All Thumbnails will generate a thumbnail image for all of the media items in the Media Bank.
If you don't like the thumbnail, select Generate Thumbnail again and it will create another randomly generated thumbnail.
This tip was created with MixEmergency 2.6.0 and Mac OS X 10.9.3. Subsequent versions may differ.