Honestech Video Editor 8.0 - Manual (Page 49)

49. Video Editor 8.0
To change the display duration for an image clip:
1. Right-click on an image clip in the storyboard.
2. From the context menu, select "Set photo duration..."
3. Set a photo duration (ex. 5 second) for the selected image. This setting
will determine how long each photo image will be displayed.
[Image Clip]
NOTE: Image clip duration can only be changed from within the Storyboard.
The position of the clip is controlled from the Timeline.