more usage command of vim folding can get from this page.
| Command | Operation |
|---|---|
| zf#j | creates a fold from the cursor down # lines. |
| zf/string | creates a fold from the cursor to string . |
| 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 by one. |
| zM | closes all open folds. |
| zr | decreases the foldlevel by one. |
| zR | decreases the foldlevel to zero -- all folds will be open. |
| zd | deletes the fold at the cursor. |
| zE | deletes all folds. |
| [z | move to start of open fold. |
| ]z | move to end of open fold. |