To create a split screen effect, what is the first step?

To create a split screen effect, the first step typically involves placing clips on top of each other. This foundational action is essential because it establishes a layered structure where multiple video clips can be manipulated together within the same frame. By layering clips, you can then proceed to adjust their individual positions, scale, and other properties to achieve the desired visual effect where they appear side by side or segmented on the screen.

After placing the clips on top of each other, subsequent steps would involve repositioning them to separate tracks, applying necessary transitions, and using keyframes for precise control over their movements and positions on the screen. However, starting with the clips layered is crucial for any further adjustments needed to create the split screen visual.