Categories act as folders in the Navigation Tree and allow you to organize your cubical maps in any way you choose. The categories and subcategories created here will carry over when importing your cubical maps into TurboCAD. You can choose a different category structure when exporting by using Advanced Export.
Each cubical map you create is represented in the Navigation Tree by a cube icon and a name. When you select a cubical map by clicking on it once, its associated data is loaded into the Details and Selections Panels.