A default thumbnail is automatically created for each video. The default thumbnail offset is three seconds, which means that Kaltura creates a thumbnail from the frame on the third second of each video. If you would like to change this offset, please contact your Customer Success Manager.
You also have the option of setting and managing thumbnails for your content. This article describes how.
If you would like to make additional changes to the object, navigate to the Edit Media Page for the object, then click the 3D Editor button. The 3D Editor displays. ...