Creating and managing scenes
Creating a scene
Method one: on the main menu select File-->New scene
Method two: click the create menu in assets to create a new scene.
Saving a scene
Method one: use keyboard shortcut Ctrl + S (Windows) or Command + S (Mac)
Method two: on the main menu select File-->Save scene
Double click the scene that you want to open in assets.
Continue on to read about Textures.