How to add a scene to the config after uploading a file js?

Phaser 3
1

Good afternoon, when you click on the button, a new js-file with the code is loaded, there are scenes there. How do I add these scenes to the config?
Screenshot_2

2

You can use the add function of the Phaser.Scenes.SceneManager. link to the documentation

like in this example, here the important code part:

var game = new Phaser.Game(config);
 ....
game.scene.add('newScene', NewScene, true, { x: 800, y: 600 });
3

I just decided. Yesterday, apparently, I was tired. Everything worked today.