When you transform SketchUp geometry into a component it takes on the following behaviors and capabilities:

What Happened to Layers? SketchUp’s Tags are an updated form of what was called Layers in older versions. Tags provide the same functionality that Layers provided and more.Tags help you organize the objects in your SketchUp model and control their visibility. SketchUp allows you to hide tagged objects in one click rather than select each object individually. Hiding large chunks of your model using tags helps to find things faster and even speed up SketchUp a bit too.

With the Outliner in SketchUp you can view a model's groups, components, and section planes in a hierarchical tree. The Outliner panel makes it easy to:Navigate around and identify objects in large models.Name objects and section planes.Find components or section planes.Restructure the model hierarchy.Control the visibility of all objects.The Outliner is a panel. To open the Outliner panel, select Window > Default Tray > Outliner.

In SketchUp, grouped geometry is called an Object. There are two types of Objects, Groups and Components. Groups are just what they sound like they are, a selection of multiple pieces of geometry. Components are more complex, reusable Objects. Both types of Objects can help you organize your model in a few ways:

SketchUp provides all the tools needed to keep everything organized. An organized model makes it easier to manage entities and control visibility. To get started, take a look at the following organizational features and techniques available in SketchUp:

Components in SketchUp turn geometry in a model into reusable entities. For example, most buildings have at least one door and window. Instead of modeling these common objects, you can insert a component that you have already made, or even one made by someone else.Like all geometry in SketchUp, a component is still made of edges and faces. The edges and faces are part of a special component group.Check out the following articles for more information:

SketchUp’s Match Photo feature can help you apply a photo to your model, or even create a model from a photo.Match Photo works best when your image meets certain criteria:

Materials, environments, and textures add images, colors, lighting, and textures to parts of your model. Applying these effects to your models adds an extra level of detail and realism. 

Certain styles may not be compatible with SketchUp's default settings for selection colors, hidden geometry display, section planes and cuts, guides, and other features. If you are color blind, changing these settings can also help you see SketchUp's modeling cues more clearly than you can with the default settings.In the Styles panel, the Edit tab has a Modeling Settings pane. Here you can customize colored visual cues and choose what cues, such as section planes, do or don't appear. You can save these selections with the active style.

SketchUp Styles can add complexity to a model that slow down SketchUp as you work on your 3D model. To apply the styles you need while optimizing performance, use Fast Style. When a style qualifies as a Fast Style, SketchUp displays a badge like this: If you apply a style created in SketchUp 2014 or earlier, the Fast Style doesn't display the badge until you force the style to update once in SketchUp.