Expand and Collapse Folders
Expand and collapse folders to better view model hierarchy.
- 
                To expand and collapse individual folders:
                - Click the arrow to the left of the folder name.
- Right-click on a folder and select Expand or
                            Collapse from the context menu.Note: Expanding or collapsing a folder using the context menu option also acts on any child folders nested within the parent folder.
 
- To open all of the folders in the entire tree structure, exposing every item nested at every level, right-click in empty space and select Expand All from the context menu.
- To closes all of the folders in the tree structure, so that only the top-most level of items displays, right-click in empty space and select Collapse All from the context menu.