The most fundamental feature of a file manager is its ability to let you move files around. Opus provides several ways to copy and move files from one folder to another:

Other file copying-related features include:

Deleting files is also a part of the basic file management tool set - Opus also provides a secure delete function to securely erase data.

More:

Copy and Paste
Drag and drop
Copying using the toolbar buttons
Copy Queues
The Jobs Bar
The Confirm File Replace Dialog
Copying Updated Files
Filtered Operations
Deleting Files