Multi-window commands

:terminal  	:terminal {cmd}		open a terminal window
CTRL-W_n  	CTRL-W n  or  :new	create new empty window
CTRL-W_s  	CTRL-W s  or  :split	split window into two parts
:vsplit  	:vsplit {file}		same, but split vertically
:vertical  	:vertical {cmd}		make {cmd} split vertically
CTRL-W_]  	CTRL-W ]		split window and jump to tag under cursor
CTRL-W_=  	CTRL-W =		make all windows equal height & width