Have you ever opened up your civil 3D and turned on your Toolspace and noticed their were some tabs missing Well there is a simple fix for this. On your ribbon Home tab this is Toolspace icon on the far left. Next to the tool space icon is the features for toolbox, prospector, survey, and settings tabs. You can simply click on each to turn them on. In addition, you also have the tool palette and properties options. See video below.