The container is a helper object that can control a collection of other objects. You can store its contents in a separate file, which is then available for use by other members of your team. Actions such as transforming, deleting, saving, unloading, and cloning a container also apply to its contents. Containers are useful in a wide variety of digital-content-creation contexts. For example, in a game-development pipeline, modelers typically build parts of a level, buildings, and characters in different containers. Another artist might then assemble these containers in a scene and then set up the lighting.