In the feature request thread... OK, I'll bite. Why is this functionality being removed? Yes, it was kind of clunky to implement but it was mostly copy/paste and the end result is something that's easy for regular users. The "replacement", which as far as I can tell isn't in the current version of the package released with 2019.1, sounds like it will make it impossible to provide standalone content to be used in Shader Graph, but instead require manual editing of text within the graph? Unless I'm really missing something that sounds like a huge step backward rather than an improvement. It creates a middle ground where everybody can sort of do stuff, but not easily, rather than a more difficult task done once by a developer. My impression from @Kink3d's comment is that this might be a bit of a debate internally as well, so as a potential user of this feature I'd like to get some feedback in early on. We don't mind doing up front work if it makes the overall workflow better!