Dependency Manager improvements
Substance Designer has a dependency manager for keeping track of referenced graphs and other files. However, it's fairly limited in terms of what you can actually do with it. There are many cases where a reference to a package or graph within the package was broken in some way and needed to be fixed but there are not many options to do so.
For example, let's say I took a graph from one package file with many graphs within it and placed it it's own package instead. What I'd like to do is point to the graph in the new package but Substance Designer only lets you relocate the package file, not the specific graph being referenced.
It would also be nice to batch relocate packages and other resources that are in the same folder in case all of them are moved from one location altogether. It would make fixing dependency issues much easier to deal with.
I'm mostly still using Substance Designer 5 so I don't know if this has been improved or not. Still, having more control over this never hurts.