Configurations in SolidWorks allow you to create multiple variations
of a part or assembly model within a single document. Configurations are
a convenient way to develop and manage families of models with different
dimensions, components, or other parameters.
You can create configurations manually, or you can use a design table
to create multiple configurations simultaneously. Design tables provide
a convenient way to create and manage configurations in a worksheet. You
can use design tables in both part and assembly documents.
You can display design tables in drawings.
See SolidWorks Tutorials: Design Tables