What is hotkeys to change keyboard layout during Guided Graphical Installation ?

[Дима Фомин]

   Hello!

   Sorry for newbie question. I am trying to install GuixSD from DVD image
   into VirtualBox.
   During Guided Graphical Installation (which in fact as I can see is not
   graphical) I chose "Russian  (typewriter)" keyboard.

   Then I came to Hostname screen and into this input field I can type
   russian letters.

   But cannot find how to change to English layout. Neither Ctr-Alt, nor
   Ctr-Shift, nor Alt-Shift, nor Alt-Space did it.



   Please tell me which hotkey is to change keyboard layout from national
   to English and back?



Thank you.