You can use the drag-and-drop technique to add parts to an active scene display. Thus the nodes in the object tree function as tangible, viewable objects.
Drag the boundary node into the Graphics window.
A pop-up menu appears letting you choose which part displayer should receive the part.
In the display window, the part you added has the properties specified in the part displayer, which you selected from the pop-up menu during the transfer.
