This extension was part of Blender 4.1 bundled add-ons. It is now offered as it is, with limited supported.
No changelog for this release.
This extension does not require special permissions.
Copy modifier won't apply data from the origin object like Ctrl-L, still need to set them again by hand.
Very handy addon. I've used it for years now.
It's not work on object mode, Blender version 4.2.3. Only work on Pose Mode. I dont know it's conflicts with other plugins or something else.