Functionality of Grading Without the Autodesk Civil 3D Object Enabler

With plain AutoCAD (no Autodesk Civil 3D Object Enabler installed), the grading created with AutoCAD Land Desktop behaves as follows:

• With the AutoCAD PROXYGRAPHICS variable set to 1 (ON when the grading was saved), a wire frame of the grading is created.
• The proxy graphics object behaves as if it is locked.
• WBLOCK, EXPLODE, and ERASE commands are honored.
• With the AutoCAD PROXYGRAPHICS variable set to 0 (OFF when the grading is saved), a box is created that represents the object.
• AutoCAD editing commands are non-functional except ERASE, WBLOCK, or EXPLODE.