Hi there
When you have run the installer, open SketchUp and choose Extensions -> Shaderlight for SketchUp -> Activate Shaderlight… from the menubar.
Choose the default Automatic Activation option and enter your activation code on the screen that follows. If all goes well, your copy of Shaderlight should be licensed and ready to go. We recommend restarting SketchUp after activating to make sure that all of the UI is updated to reflect your licence.
If you don’t see an Extensions menu, or there is no Shaderlight for SketchUp item under it, you will need to tell SketchUp to allow unrestricted access for extensions. You can do this by choosing the Window -> Extension Manager menu option, clicking the cog icon in the top-right corner of the Extension Manager window and then selecting ‘Unrestricted’ in the Settings dialog that appears.
Do let us know if you still have problems.