More content is good, it tends to provide detailed information at any given time. In case of videos you can say the same about split screen and picture in picture features are of the same category. You get to view much more than than a single window. Every video editor offers you to split screen so you can provide content when you have recorded multiple footage of the same event.

For professional and educational video makers who use several cameras during a single video, need to showcase each angle, thereby making split screen important. Also, during presentations it would be ideal that the creator and presenter to be seen and heard. If you are showcasing machinery, a P-O-P (picture-in-picture) window will help you show simultaneous readings on the meters and other readings.

Split screen is ideal for comparisons, multi-viewing, better communication, advertising, tutorials, etc. For example, software settings can be explained in one side of the screen whereas in the split screen you can show the outcome at the same time. Split screen also works when you want different angles on the same event, imaging an exciting race, where two contestants are competing for a numero uno position, a split screen showing them from different cameras would do whole lot of difference and make each moment of the race memorable and add to the excitement.

Split screen feature is available in all video makers, you will need to use a parallel video clip to show in another screen. A split screen can also be used during keyframing and adding more value to a single video. If there are two videos indeed being used, you can easily change settings for both and customize them according to your requirements.