Subassembly Studio 2016 One feature in particular stands out – the ability to support multiple versions of AutoCAD Civil 3D with a single source subassembly catalog data file. To export to a new version of AutoCAD Civil 3D, you simply open the file in the Subassembly Studio Designer and export…during the export process simply select the proper version of AutoCAD Civil 3D from the supported version list. That’s it. It’s that simple. In addition to all of the additional features Subassembly Studio offers, there is also a huge difference in usability. Subassembly Composer isolates the geometry from the logic of a subassembly by placing the logic in a flowchart, and the geometry in a ‘preview’ window; Subassembly Studio presents both the logic and the geometry in the same graphic, much like an exploded mechanical drawing. With Subassembly Studio, you can easily see both the logical flow of the subassembly and the geometry associated with each part of the logic. This makes it much easier to visualize precisely which components contribute to which parts of a complex subassembly. Another very important consideration is that Subassembly Studio is still being actively developed and regularly updated with new and/or improved features. If you need it to do something it currently cannot do (which isn’t much), we can almost certainly build in the required feature.