Hello! I am a beginner user of Catia and I have a problem making a catalog of an assembly. When I try to add a part family to one of the chapters, I choose one of the parts in the assembly as a document. I also made a design table of the designated part, an error message ocurrs that says that the part does not exist. How can I solve this? Are there other aspects of making a catalog of powercopies of the parts of an assembly that I should consider? I am using student edition Catia V5 version 2018.