zi : Folding ON/OFF
za : Toggle
zo : open current fold
zO : open current fold (recursively)
zc : close current fold
zC : close current fold (recursively)
zv : expand folds to reveal cursor
zm : Recude ‘fold level’ by one
zM : Close all folds
zr : increase ‘foldlevel’ by one
zR : Open all folds
zMzv : 현재 커서가 있는 폴드를 제외한 다른 폴드를 모두 닫는다.
Folding Navigation
zj : move DOWN to top of next fold
zk : move UP to bottom of previous fold