Folder "other" for unwanted chats

If you mute chat in directed messages, chat still shows on list. It doesn't matter if you closed it will still shows tinted on list when someone send you message. I think there should be option like "Don't show on list" or "Don't show on directed messages". You know what I mean. It will be better if some chats doesn't popout. I don't want to block someone but I also don't want to saw them on list. I think all of us experienced that feeling. In directed messages should be something like "other" where that unshown private chats can be. Someting like folder for unwanted chats.