We are using AutoCad 2012. Our company have more than 32 disciplines. For any projects the drawings are prepared with many disciplines. Civil does the civil drawing portions, water does the water pipeline portion, electrical does the electrical cable layout portions etc. etc. Each departments have their own set of layers in the drawing.
Now the problem is civil can accidentally modify the entities of electrical departments / utility departments. Though we lock the other disciplines layers programmetrically, but user can unlock the other disciplines layers easily if he wish to. Can we make those other disciplines layers read only? So that users can draw / modify in his own discipline layers but can not do that in other disciplines layer. But he can refer those layers / copy entities from those layers if he wish to? Some sort of xref type of thing is required, but we can not use xrefs as we work in a single drawing and our custom drawing management system is integrated with this type of file system accross the offices.
Any idea? Please help.