I am trying to add QWERTZ Slovak keyboard layout, but it is not listed under Region & Language -> Input Sources. I find QWERTZ layout quite standard in my region. Is it possible to install it or is there any other way how to configure the keyboard?
31 Answer
In 18.04 select Slovak only not Slovak (something) it is QWERTZ. 
after selecting close the settings windows.
and
Reboot
