Navigation
There are many ways you can navigate (that is, move from one folder to 
another) in a Lister, including:
  - You can double-click a folder in the current location to enter it. You can 
  also enter a folder by right-clicking on it and choosing Open 
  from the context menu, or from the keyboard by using the cursor keys 
  to select it and then pressing the Enter key. 
  
 - The Up, Forward 
  and Back buttons: The default File 
  Display toolbar contains buttons that can move you up in the 
  folder hierarchy, back to the previous folder or forward to the next folder. 
  
 - The Folder 
  Tree: You can change folder by simply clicking on a new folder in 
  the tree (you can also navigate via the tree using the keyboard cursor keys). 
  
 - File Display 
  border: If the File Display toolbar has been 
  disabled, a smaller border is displayed in dual-display mode which shows the 
  current path and provides some default navigation buttons. 
  
 - The 
  Breadcrumbs location field: The default File 
  Display toolbar contains a field known as the 'breadcrumbs 
  location field'. This displays your current location as "breadcrumbs" that 
  indicate the path from the desktop to your current folder. Each "crumb" in the 
  path is active and can be clicked or expanded. You can also type into this bar 
  in order to navigate to a folder using the keyboard. 
  
 - Favorites: 
  You can add folders to a list of your favorite locations - navigating to these 
  folders is simply a matter of selecting them from the drop-down menu. Access 
  the favorites from the drop-down on the default File 
  Display toolbar or from the tree. 
  
 - SmartFavorites: If enabled, the 
  SmartFavorites system attempts to learn your most commonly 
  used locations automatically. A list of these locations is then displayed in 
  the drop-down Favorites menu. 
  
 - Recent and 
  History Lists: Opus maintains two lists of your recently used 
  locations, that you can use to instantly go back to a folder you were recently 
  in. One (the Recent list) is global to the program, and the 
  other (the History list) is local to a file display. 
  
 - Aliases: You 
  can define aliases that reference a folder by a simple name - you can then 
  navigate to an aliased folder by typing its name into the location field.