Hello Wade, If I was creating two or more assemblies which were very similar, say for instance a key pad whose keys vary for each assembly, I would use a family table. What you do is assemble 'ALL' components into the generic assembly and use the family table to create instances of the generic and exclude parts for a particular instance. If you are familiar with family tables this is very easy and quick to accomplish, if you are not familiar then have a little practise outside of your current project.