When user chooses Lithuanian keyboard layout then XKB variables in /etc/default/keyboard should set to:
XKBLAYOUT="lt,us"
XKBVARIANT=",altgr-intl"
I'm attaching screenshot of English US (intl with altGR) keyboard layoyut, this layout is most usefull for Lithuanians, because it contains Euro (€) and other symbols, often used in Lithuania.
When user chooses Lithuanian keyboard layout then XKB variables in /etc/default/ keyboard should set to: ",altgr- intl"
XKBLAYOUT="lt,us"
XKBVARIANT=
I'm attaching screenshot of English US (intl with altGR) keyboard layoyut, this layout is most usefull for Lithuanians, because it contains Euro (€) and other symbols, often used in Lithuania.