SOLIDWORKS multibody part functionality lets you work with several bodies in one part to create complex sheet metal designs.
Multibody sheet metal parts can consist of multiple sheet metal bodies or a
combination of sheet metal and other bodies such as weldment bodies.
Each body has its own sheet metal and material definition, flat pattern, and
custom properties. You can use these body-related properties in BOMs and drawings.
You can isolate each body, and display each body individually in drawings,
making it possible to interact with the part as if it is an assembly.
You can also create sheet metal assemblies (external link to
MySolidWorks.com).