This article explains how to trim the start and end points of a video. It applies equally to on-demand videos as well as recorded live events.
Not all accounts have trimming enabled. If you are interested in having trimming enabled on your account, please contact sales.
To access the trim feature, first find the video that you wish to trim, then select the Trim selection in the sub-menu. The interface will look as in the picture below showing a player for preview and a timeline with a playhead and two adjustments (start and end).
To trim the video, simply drag the start and end adjusters to the desired position. Use the playhead to play the video to the correct position and click the "" icons to move the trim adjuster to the current position of the playhead. Use the arrows to fine tune the position of the trim adjuster.