Hangers and supports carry various types of distributive systems such as pipes, HVAC ducts, and cable trays. Usually, supports are connected to the supported object, such as a pipe, and to a supporting object, such as a beam. However, you can also place supports between two or more supported objects such as placing a support between two pipes.
Objects in an as-built model, called Smart Interop Objects, contain common schema property values that associate model objects to physical objects.