In windows you can switch between English and Bulgarian language with Alt + Shift. But there is an option to switch between Bulgarian Traditional and Bulgarian Phonetic layout using Ctrl + Shift. When you press again Alt + Shift you switch to English layout again.
So with Alt + Shift you switch between languages and with Ctrl + Shift you swith between same language kayboard variants.
Is there a way to achieve that in linux. I am currently using Xubuntu 14.04.
Thank you in advance.