Here is a very handy change to AutoCAD 2016 made after customers requested the functionality to change properties of Layers in an AutoCAD XREF. When the AutoCAD System Variable XREFOVERRIDE is set to 1, you can change the Color, Linetype, Linewidth, Transparency and Plot Style of objects in the XREF drawing or nested blocks by changing its original layer property in layer palette, in spite of the legacy ByBlock rule. Thanks to AutoCAD team member Tao Zheng for the heads... Read more →