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Kaltura lets you create visual bookmarks in your videos, or incorporate graphic images or slides from applications like PowerPoint. These features are called Chapter Markers and Slide Markers.
Chapter and Slide Markers can help you make it easier for your viewers to find specific information in your videos. This can be especially helpful if your video is 30 minutes or longer (where a watching the entire piece might take too long).
When editing your video's properties in Kaltura, you use the Timeline interface to access these features.
This video (and the links below it) show you how to use the Marker features:
Importing PowerPoint Files to create chapter markers
VCC's Kaltura allows you to import entire PowerPoint slide decks to automatically create graphical chapter markers in a video.
That process is well documented in this article: