If a component is designed with the “top-down” technique, this means it is born in the assembly environment and it is designed using references to other parts within that assembly. This is a drawing template file (.dwt) and is fully loaded with attribute text for you titleblock text. Brandon has been obsessed with design and technology for as long as he can remember and uses his Blog and Channel as an outlet and excuse to keep up with the ever-changing industry. There are few ways to do this so you choose wh. I believe this was a new feature in AutoCAD 2010.
If you have ever drawn a Spline and wanted to convert it to a polyline well you can and here is how.