I have not had time to fully test this. Not at all in VW2017 as I don't have a clean installation. In 2016 I just copies the Attributes_Line Types folder from the Application folder Library to the User folder Library. This resulted in identical files with the same name (LineTypes_Default) in both locations. With this setup I got only a single instance of each line type in the Attributes palette. I then edited the file in the User library. I changed the color of one line type and delete