YES, you can!
In Directory Opus 10, go to Settings -> Preferences -> Folders -> Folder Display and enable:
[ul][li]Show '..' parent item in folders.[/li][/ul]
(Or just type ".." into the filter at the bottom of the Preferences window and let Opus find the option for you. )
In addition, there are many available alternatives:
[ol][li]The Parent button is in the default toolbar and can be moved or duplicated to any position on the toolbar that you like.
It's always at the top of the file list, like the ".." directory, except you never have to scroll to see it.
You can drag & drop files onto the Parent button to copy/move files to the parent directory, just like if you had a ".." directory.
[li]A Slide-Out Navigation Button can be switched on so that a button appears allowing you to go up a directory when you move the mouse to the edge or corners of the file display.
To configure this turn on Preferences / Listers / File Display: Enable "slide-out" navigation buttons and use the drop-down to select corners/sides/both and set the time delay.
You cannot use the slide-out navigation buttons to move files to the parent using drag & drop.
[li]The File Display Border has a Parent button in the top-right.
The File Display Border is always visible when a lister is in Dual-Display Mode, that is when a single window shows two directories at once.
You can configure the File Display Border to be visible in Single-Display Mode via Preferences / Listers / File Display Border / Show file display border in single display mode. (In versions prior to Directory Opus 9 this setting is under File Display rather than File Display Border.)
You can drag & drop files to the File Display Border's parent button.
[li]If Hot Paths are enabled then you can click on part of the path shown in the file display border to go there directly.
This allows you to jump to the parent directory, or any other directory above it, in a single click, assuming the path hasn't been truncated to fit the width of the window.
Hot Paths are enabled via Preferences / Listers / File Display Border: Enable hot paths in file display border. (In versions prior to Directory Opus 9 this setting is under File Display rather than File Display Border.)
There is also an option to enable Hot Paths only in the Source side of dual-display windows, so they do not interfere with dragging out one half of a dual-display window to split it into two separate windows.
When Hot Paths are enabled you can drag & drop files to any part of the path to copy/move files to that location.
[li]Path fields set to the Breadcrumbs mode let you click on folders above the current one to go to them. You can also click on the arrows between folders to go to a sibling folder, or the sibling of a parent folder.
[li]You can set a Hotkey to go to the parent directory. By default the Backspace key does this but you are free to change this via Customize / Keys.
[li]If you set Preferences / Listers / File Display / Double-click on file display background to Go to parent folder then you can go to the parent directory by double-clicking in an empty place in the file list (anywhere that won't cause a file to be selected).
[li]You could add a parent button to the Lister Context Menu so that you can right-click the file display and select the command without moving the mouse far. To do this go to Settings -> Customize / Context Menus and edit Lister Context
Also, if you want the parent button to appear in the context menus for files and folders, so you can right-click absolutely anywhere in the file display and still have access to it, then go to Settings -> File Types, edit the All files and folders type near the top and add a new command to its Context Menu tab. The type should be set to Run an Opus function and function should be set to Standard Function. The command should be Go UP or Go UP BACK (See the FAQ linked below for the difference).[/li][/ol]See Also: While on the subject of parent buttons, you may find the FAQ on HOW TO: Remember scroll positions and file selections useful.