When the Project Manager is first opened, the folders are displayed,
but each individual folder is closed (collapsed). If the folder contains
files or subfolders, a plus box appears at the left side
of the folder icon.
When you open a folder, you expand the hierarchy so you can see the contents within it. When you close a folder, you collapse the hierarchy so you do not see its contents.
From the folder you want
to open, click the plus box .
From the View menu, select Expand All.
From the folder you want
to close, click the minus box .
From the View menu, select Collapse All.
Tip: If you right-click on any item in a folder, a menu will appear with the available options for working with it.