I needed the .ro layout too, one year ago, and i used 'xsetkbmap ro' to activate it, then I was running libreoffice to be able to type using romanian characters. If I'm not mistaken, I think I was able to type them even in xterm.
I tried to do that again in 5.2-beta but no luck, the special chars are not available and the .us ones are typed when I hit the keys.

