This SketchUp extension, as the name says, adds one layer dedicated to each scene already created. The best thing is that every new created layer will be on in it's unique Scene. Installation This instructions are listed to match Mac OS X steps, it may vary a bit on Windows, but the extension works for both operating systems. Download the file to your computer Open SketchUp and go to Menu › Preferences... › Extensions › Install Extension... Select the file you just downloaded It will ask you if you trust this extension and if you want to install it, press " Yes " and the " Ok " That's it, the extension it's installed in your computer. Usage › Menu › Plugins › Add Scene Layers Download › AddSceneLayers.rbz