Copy and Paste
Copy-and-paste (or cut-and-paste) is possibly the simplest method of moving 
files around. Select the files you want to copy or move, choose the 
Copy (Ctrl+C) or Cut 
(Ctrl+X) command from the Edit menu, navigate 
to the target folder, and select Paste (Ctrl+V). 
Moving files using the clipboard is implemented in almost all file managers the 
same way, although Opus does extend this functionality in a few ways, which it's 
worth being aware of.
 
  - Although these functions use the internal Clipboard command to initiate them, when you 
  paste files into a Lister, the actual file copy or move is implemented 
  "behind-the-scenes" using the internal Copy command. This means that features like 
  the copy queue are 
  available for clipboard operations just like they are when copying via the toolbar 
  buttons. You can control the queuing using the various arguments for the 
  Clipboard 
  command.
   - If the clipboard contains text or graphics data, you can paste that in a 
  Lister as if it were a real file. Opus will create a new file and write the 
  clipboard data to it automatically. By default, text data will be written 
  to a file called Clipboard Text.txt, and graphical data will be 
  written to a file called Clipboard Image.jpg. You can modify the 
  format that graphics data is saved in (Bitmap, GIF, PNG or JPG) using the 
  clipboard_image_paste option on the Miscellaneous / Advanced page 
  in Preferences. The name of the new file can be controlled using the various 
  arguments for the Clipboard command.
   - The ADD argument for the internal Clipboard command lets you 
  add selected files to any that are already on the clipboard. For example, you 
  could copy a few files from one folder, a few from another folder, and a few 
  from a third folder, and then paste them all into the destination in one go. 
  To make use of this functionality, you would need to create a new toolbar 
  button or hotkey that runs the Clipboard COPY ADD 
  command (or assign this to a hotkey - for example, Ctrl+C 
  runs Clipboard COPY by default, so you could assign this to 
  Ctrl+Shift+C). See the section on Customize for information about creating your own 
  buttons and hotkeys.