The Copy Tool option allows you to create a copy of an existing tool, and paste the copy in the current view or to another file.
Copy
To create a copy of a drawing tool:
Right-click on a tool and select Copy from the popup menu, OR
Left-click on a tool and select Ctrl+C on the keyboard
This will copy the tool to the clipboard.
Paste
Now you can paste a copy of the tool in the current view, or to any other applicable view in another Dips file, by selecting Paste from the right-click menu, the Edit menu or Ctrl+V on the keyboard.
If you paste the tool copy into the current view, it will exactly overlap the original tool. To move the copy to another location, click on the tool and drag the copy to another location in the view.
To paste the tool copy to another file, first switch to the desired file/view, and select Paste.