Example
zoopens a fold underneath the cursor.zOopens all folds underneath the cursor, recursively.zccloses a fold underneath the cursor.zCcloses all folds underneath the cursor, recursively.zatoggles a fold under the cursor (a closed fold is opened, an opened fold is closed).zMcloses all folds in the buffer.zRopens all folds in the buffer.zmcloses a level of fold in the buffer.zropens a level of fold in the buffer.
