In Lightstream Studio you can find a variety of premade intro, outro, and intermission videos in the Produce section of the right panel. You can also upload your own WEBM or MP4 videos with a size limit of 500 MB. When using an uploaded video, make sure the resolution matches that of your plan, either 720p or 1080p.
Playing a Transition or "Stinger"
Currently the only way to accomplish this would be to use the following steps. Upload your custom video clip and add it to your favorites. Use the corresponding keyboard shortcuts when live to display the transition video on stage while simultaneously using your mouse to make the adjustments to your layout.
Note: We plan to implement a more traditional method of transitions in the future.
Playing the Video
To play the video on your stage, select it from the Videos section in the right panel. To set it to loop you can toggle that option above the video preview icons. While the video is playing all microphones on the stage will be muted. You can also toggle videos via the favorites option.