A challenge in building and using modern electronics is understanding what the electronics is doing inside, especially at multiple levels of intellectual abstraction and for both intended and pathological operating states. For example, an electronic system may be understood at the level of semiconductor physics, or of presented voltages and current flows among circuit components, or of cooperating subsystems in a block diagram, or of physical components in a spatial three-dimensional (3D) arrangement with respect to each other. When the user-owner is also the builder of the electronics, in addition to understanding the electronic device as an appliance to be used the builder also typically will enjoy greater than usual familiarity with the device's construction, including physical arrangement of its components. The builder further typically will have a high interest in becoming educated about and understanding the device's structure and function at the other levels of abstraction. For example, builders may want to understand the device's circuit-level description, something of the underlying physics, and how these relate to the components that builders themselves physically arranged in the course of construction. This multiple-abstraction understanding also is important or essential in troubleshooting, diagnosis and debugging, repair, maintenance, subsequent upgrade, and experimentation.