Hello... I have signed up for some AutoCAD classes that start in a few months. Is it possible (I think we're using AutoCAD 2006, but at least 2004) to model a number of models "to scale" (as in, define that this particular model is a car and is 15 feet long, etc), and then open a new drawing and 'drop in' numerous models that you've drawn previously? And have them appear 'to scale' with each other? So, if I model a parking lot, cars, and a lamp, when I bring them all into the same drawing, they're all proportional to each other? Thanking you -Joel