I just joined your group a few minutes ago and found your thread. I have a question regarding manufacturer's details drawn with different Layers/Lineweights/Colors than what I use. I've tried copying the manufacturer's details into my current configuration, and want to change or rename their format in the Layer Properties Manager? It won't let me delete their layers, and I want to pare down from 20 layers (manufacture's details) to 10 (mine)? Any help would be sincerely appreciated