I'm even a bit confused with the terminology right now -- input source, keyboard layout, language support -- so please forgive me if I've missed something due to a badly worded search.
I'm running 12.04LTS.
It was installed with just the US layout.
I'd like to switch to Dvorak.
I cannot find any layouts at all, and cannot figure out where to get them. My screen appears as such:
There is just nothing listed, and I'm not sure how to proceed from here.
Thank you for your time