Vi Improved, a highly configurable, improved version of the vi text editor
Vim folding commands
zf#j creates a fold from the cursor down # lines.
zf/string creates a fold from the cursor to string .
za When on a closed fold: open it.and vice-versa.
zA When on a closed fold: open it recursively.and vice-versa.
zj moves the cursor to the next fold.
zk moves the cursor to the previous fold.
zo opens a fold at the cursor.
zO opens all folds at the cursor.
zm increases the foldlevel…