From FreeCAD Documentation
- The 3D view, showing the contents of your document.
- The tree view showing the hierarchy and construction history of all the objects in your document.
- The property editor, which allows you to view and modify properties of the selected objects.
- The selection view, which indicates the objects or elements of objects (faces, vertices) that are selected.
- The report view (or output window), where FreeCAD prints messages, warnings and errors.
- The Python console, where all the commands executed by FreeCAD are printed, and where you can enter Python code.
- The workbench selector, where you select the active workbench.