FreeBSD Desktop - setting up GR keyboard in Xorg 

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#vi /usr/local/etc/X11/xorg.conf.d/kbd-layout-multi.conf

Section	"InputClass"
	Identifier	"All Keyboards"
	MatchIsKeyboard	"yes"
	Option		"XkbLayout"	"us(mac), gr, us(colemak)"
	Option		"XkbModel"	"applelu_ansi"	#optional
	Option		"XkbVariant	"mac"		#optional
	Option		"XkbOptions"	"grp:win_space_toggle"
EndSection

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Install sbxkb package
#pkg install sbxkb

vi ~/.config/i3/config
add at the end of the file

## start sbxkb utility to show active keyboard layout icons
exec sbxkb &

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