At present, if you want to combine drawings into one single DWG, it has to be combined manually or by importing each drawing as a block/xref.
This Add-in will make your work easier. You can merge drawings multiple times and choose the position of the drawing in the model space.
- You also can convert all raster images to OLE objects in the drawing.
- Convert object color to layer color
- Export Layer information to a text file
- Convert all raster images to OLE objects in the drawing