@Adept-Design
Have you installed the newest versions of Fredo's extensions and LibFredo6, and the SketchUcation toolset [for the licensing] ?
Install extensions using the SketchUcation ExtensionStore³ system or download the RBZs from our PluginStore and use the native installer, through the Extensions Manager...
Restart SketchUp after the installations to sync everything.
There should be submenus under Tools for Fredo's extensions, including license activation etc.
There are also menu items and Toolbars to use these tools etc...