Viewing the Contents of a Volume, Folder, or Catalog
To expand or collapse the currently selected folder, do one of the following:
Click the Expand/Collapse icon next to the volume, folder, project, or catalog in either the Browser pane or the Locations pane.
Select a volume, folder, or Catalog, and press the Right Arrow key to expand, or the left Arrow key to collapse.
To move up one level in a browser:
Click the Browse Back arrow in the toolbar.
To move up one level in a browser, press Command+Up Arrow key (Mac) or Control+Up Arrow key (Windows).