In CS6 we were able to install the same app in 2 languages just by changing the language in the cloud preferences and installing the same app a second time. Has this functionality disapeared? I can't see how it is done in the new CC download/installer app.
I think I have the answer. Reboot the computer in the alternative language and then open the Cloud installer in same language, and you are presented with a refreshed list of what apps havent been installed in said language yet.