Hydrogen Pack is a utility plugin for the Oxygen Builder that brings a number of useful features. It includes the ability to copy elements and copy styles. The plugin adds a convenient right-click menu and more than 60 customizable keyboard shortcuts. There is a sandbox mode for making and testing changes without making them live until you are ready. These and more features are available in packages for 1, 5, or unlimited sites. All packages are lifetime and include lifetime updates and support.