Please briefly explain how to create a video in which multiple videos are arranged side by side.
Here's how to make it in the simplest steps: The explanation is based on the condition that editing materials have already been registered in the media pool.
On the cut page, drag the material in the media pool to another track on the timeline and arrange them one by one.
Arrange the tracks on the timeline in such an order that the top one is on top of the video.
Select the top track and select "Inspector" on the top right of the screen
Set the zoom and position of "Transformation" and the range to be cut with "Crop"
Similarly, set the zoom etc. for the second and third tracks