2. Import your video clips. Upload the two video files you want to use by clicking Add Files. Drag the videos to the timeline.
3. Drag to overlay track. Move one video to the Overlay track above the main video track.
4. Apply the picture-in-picture effect. Click the overlay clip in the timeline to select it. Open the More tools tab and select Position. Choose Picture in picture or Side by side from the available display modes.
5. Adjust the size and position. Use the preview screen to resize and place your video as desired. You can split them vertically or horizontally depending on your chosen look.
6. Edit the audio track. If needed, you can mute one of the videos. To do this, click the Mute track icon.
7. Export your video. Click Export, select your resolution and format, and save the finished video to your computer.