I have many objects contained in my selection, both single-user and multi-user. I want to apply scale to all single-users, but Blender will throw an error, because it can’t apply scale to multi-users. This is obvious, but in this case, Blender should sort them, ignore multi-user objects and let me apply scale to all single-users. But that doesn’t happen.
I also don’t want to break object links by making my multi-users into single-users.
I believe the real fix can only be done in Blender core development, so I will forward a feature request where possible (or maybe even a bug report, I dunno).
For now, we could at least have a way to select only single-user or only multi-user objects. But I also couldn’t find any tool for that. Perhaps someone could help out with a script? It would be even more universal to script an object selector based on number of users.