Assemblies Overview
An assembly is a list of parts and sub-assemblies that organizes your model hierarchically to reflect the data structure of the modeled product.
Assemblies are denoted in the Model Browser with a folder icon. You can select, edit, copy, delete, translate and rotate assemblies.
Parts and sub-assemblies within an assembly are positioned in space relative to the parent assembly. If you translate or rotate a parent assembly, its parts and sub-assemblies move with it. Assemblies do not have their own color, visibility, or material properties. Changing any of these properties on an assembly actually applies the change to the individual parts within the assembly down to the lowest level in the hierarchy.