The Model Floor can be accessed from the Toolbox. (View menu > Toolbox > Add > Visual > Model Floor). or by dragging and dropping a Floor object from the Visual section of the library Icon Grid.
Note: Only one floor object may be added to a model. Dragging and dropping a floor object into a model already containing a floor will open the model floor's properties window.
The Model Floor is a Visual Tool object that displays a color and/or image texture as the "floor" of the model. The floor extends out from all directions as far as the eye can see. It allows you to see shadows from model objects.
If no texture is defined, only the color will be used to draw the floor. If an image texture is defined, the vertical and horizontal repeat size of the image may be defined.