In the most recent update/changelog post in the AwesomeMod d/l thread, it says
Added "drop objects onto NPCs to transfer to other fambly" to options list.
I'm not sure what "NPC" means in this context: a game-generated character, like the "classic" mailmen/paperboy NPCs? Or any player-created sim that isn't currently active/selected?
(I can't just quickly test it to see for myself -- I'm on OS X, so I'm very much under the impression that any attempt to install the current patch would result in a lenghty uninstall/reinstall/banging head on keyboard procedure).