The three organizational elements of SketchUp are groups, components and layers. We discuss all three in our SketchUp training courses.
The first two elements are discussed in other blog posts, but here we’ll look at the use of scenes to reveal the various layers of a model. For example, in the model of a house or renovations we could set up various layers and scenes in order to easily toggle back and forth between the various levels of the house.
Firstly go to the Window drop-down layer and choose Layers. Toggle each layer on and off in order to make sure each set of objects are on the correct layers. If not, go to the Window menu and choose Entity Info. Reorganize the objects by selecting then moving their layer in Entity Info.
Now we create a set of Scenes – go to Window and select Scenes, whereupon a Scenes dialog box will open. Turn off the Main level visibility and click the Plus button to create a Scene. Then click on the square Options button and Name it: Ground floor.
Turn the Main level on, and the Lower level off. Click the Plus button to create a Scene and name it: Upper floor. Note the Scene tabs which appear at the top of the screen. Click on each of these in turn  to toggle each scene on and off. Note: you could also create scenes for the following:  the building Footprint consisting of poured concrete,  a scene for the timber Framing (2x4s), another one for Walls, and one for the Finished Build with cabinets and appliances.
Many useful tips and techniques can be found at the SketchUp website. And see many examples of our own clients’ work on our Facebook page.
Other related SketchUp Blog Posts:

• SketchUp background
• SketchUp introduction
• SketchUp modeling
• SketchUp contours
• SketchUp workspace