The idea here is that it should be easy to work in the outliner by picking a bunch of objects and adding them to a new collection. Where is the new collection? In the same level as the "outliner active" object.
Note, since the outliner has no pure concept of an active object, I'm using the highlight tag for this. Hopefully it works fine.
It should work in "Collections", "View Layer", and "Groups". Only when collections are not filtered out.
Full Hash: 77b61b554ca10353b408645e3316e06c8d240388 Parent Commit: 107486e Lines Changed: +113, -26