Using Object Libraries
Object libraries are collections of commonly used objects.
Click 
to show the Object Library panel. Or
select the Component Tab 
to show all component sub-panels.
Click 
to open an object library. The drop-down box provides quick access to all object libraries
that are in the same folder as the active object library.
Click 
to add an object to the library. This will allow you to select a 3D Canvas Object File to
load into the Object Library. Alternatively, you can right click on an object and select Add
to Object Library.
Click 
to delete the selected object from the library.
Click 
to show
more objects.
Click 
to show
fewer objects.
To add an object to your scene, click on an object and drag it onto your scene. This will make a copy of it in your scene.