How to make a square dance video with one person into several people in acoustic video x5, I'm a novice, please say a little more detailed, thank you.

First in the light blue background to record a good video of your dance, and then import this video to the overlay track of the acoustic shadow, use the color key to remove the background, and then add the appropriate scene on the video track as a background to use, you need a few dance together, open a few overlay tracks, copy the video to remove the background and paste it into the other overlay track to go, and properly adjust the size and position of the left and right, basically finished. If you don't know how to do it, you can leave a penguin to help you finish it.