The Toolbox panel is located by default on the left side of the main viewing area of the Scene.
When the Toolbox tab is clicked, direct access to Resources and Components will be provided. To access the Components panel, simply click on the Components tab in the Toolbox panel, and access the resources panel; click on the resources tab in the Toolbox panel.
To build a Scene any Resource can be used as well as components. To use a resource or a component in the scene, simply drag it from the toolbox main viewing area. First select the resource or component and, drag and drop it to the main viewing area.