Multiple windows in vim

gistfile1.md

:split filename
ctrl-w w	split window and load another file
:vsplit filename
ctrl-w v	vertical split
:hide
ctrl-w q	close current window
ctrl-w arrow	move cursor up/down/left/right a window
ctrl-w ctrl-w	move cursor to another window (cycle)
ctrl-w _	maximize current window
ctrl-w =	make all equal size
[n] ctrl-w +	increase window size by n lines
[n] ctrl-w -	decrease window size by n lines
[n] ctrl-w >	move window divider by n columns to the right
[n] ctrl-w <	move window divider by n columns to the left
ctrl-w r	rotate windows anti-clockwise
ctrl-w R	rotate windows clockwise
:sview file	same as split, but readonly
:only	keep only this window open
:ls	show current buffers
:b 2	open buffer #2 in this window