I have an assembly with a sub-assembly, which has four components made from the Solidworks Library. I am not sure if it is the Solidworks Library.  But, it is a tabled part, that I cannot find.  The part, "l angle_ai" is read-only from "C:\\Solidworks Data(3)\\browser\\Ansi Inch\\structural members\\steel".

The problem I am having is that there is a part that has an actual part no. that "l angle_ai" keeps replacing.  But, I want to keep the original part, not "l angle_ai".  I would replace "l angle_ai" with the part I want.  But, when I re-open the assembly, "l angle_ai" replaces that part.

Can someone please help me permanently break this link?

Thanks,