I am running Ubuntu Gnome 15.04, and every spell checker on the machine, and language etc, is in English (US), however I want to change that to English (UK), and I want to add support for Russian so that I can change to that when I wish, and tell my spell checkers to also change to that. In the normal Ubuntu 15.04 installation there is a language support section, and apparently in earlier versions of Ubuntu Gnome, however in Ubuntu Gnome 15.04 I cannot find this functionality.
So I believe my question is clear, in Ubuntu Gnome 15.04 how do I add additional language packs (specifically English (UK) and Russian)?
No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.04 Release: 15.04 Codename: vivid