[Moving to IdeaStation] I have assemblies which have 20+ parts sourced from the same model. If I want to tweak that part, but only for one assembly, I may apply "Save as and replace" function. But I will end up with 20 new designs, which I need to tweak. It is easy enough to identify that multiple selected components are sourced from the same external design, so adding Save and replace menu item to the selected components if all of them reference the same design should not be a big deal.