SketchUp’s context menus offer different options depending on what type of entity you are working with. Knowing what’s available when you context click an entity can help you skip a few clicks and model with better precision. Note: Not all context menu options will be available for every entity of the same type. If an option isn’t available it will usually appear as grayed out. AllThese options appear for almost every entity. 

SketchUp contains a Ruby application programming interface (API) for users who are familiar with (or want to learn) Ruby scripting and want to extend the functionality of SketchUp. With the API, you can create tools, menu items, and other plugins, such as automated component generators, to be included in the menus within SketchUp. In addition to the API, SketchUp also includes a Ruby console, which is an environment where you can experiment with Ruby commands or methods.