To the right of these quadrants are the menus, with special-purpose buttons at the lower right. The menu changes as you make selections from it, and the buttons perform such tasks as re-aligning views, enlarging and shrinking views, changing the axes of a view, and so on. In this view, a grid is active, with 10 units separating grid points. The menu to the right shows two words highlight and create, at the top, and Box at the top of the indented portion of the menu. 3D Studio uses this kind of vertical menu.
Indented selections are all possible choices for the highlighted item higher up on the menu.
In this case, we can create any of the objects listed, including Boxes, Spheres, Hemispheres, Cylinders, Tubes, Cones, and so forth. Cross hairs appear in the active view. The coordinates of the current point appear at the top of the screen. The selected point will be the upper-left coordinate for the box. If you are not familiar with 3D coordinates, the Z coordinate represents the third dimension.