Imported From: http://groups.google.com/group/in-portal-dev/browse_thread/thread/98056ee228200ba0#
'multilang' field option (in unit config). Why? Because there are some
cases when you need to apply any formatter (different from
kMultiLanguage) to field, but field also needs to be multi-language.
For example, in banner management system you may need to upload
different images for each language.