Is it possible to identify the type of data (projection) contained in a source sub-directory and Acad maps will remember that permanently for all future drawings? We always work in Nad 83 State Plane in north or south zone projection but have USGS DLG's in nad 27, drg's in UTM coordinates and DLG in still another projection. Rather than doing the tedious transforms each time we load a peice of data I would like to have a north zone projection prototype and a south projection prototype and all of the dissimilar data would be transparently converted to that projection based on the information recorded about the source subdirectory and the prototype that I use. Joe