This feature is experimental and it will be developed further over time.
1 - Open the Generate Scene tab in the Build Menu
2 - Type a description of the scene you want AI to create for you (for example: Ancient castle ruins) + tap Enter
3 - Wait until the scene is generated: there's a loading symbol over a free Build menu slot that indicates whether the scene is ready
4 - The newly created scene can be dragged to the editor scene as many times as you want
5 - If you want to create another scene, tap the green plus icon and write a new prompt