How To: Specify what position in a video clip the media manager uses for the preview image in the media map. This is very useful if a video has some black frames at the start. To do this, double click the media manager icon and select the clip. On the right side of the window you should see a preview of the clip. Press the play button to preview the clip. Click the camera icon while it is playing to use that point as the preview image. Please note: moving the scroll bar will not work correctly for all types of media, so it is best to use the play button instead.