Use-case:
I’m a huge fan of the quick cloning buttons and use them frequently to create pages with similar views.
Sometimes, however, that means cloning over a view fields that aren’t needed in the second view.
Operation I would would be hold down Ctrl, click on a few elements, and action bulk actions (none come to mind right now besides deleting, but perhaps it would also be nice to be able to group items together for ease of use.