Copy
In the terminal window the Copy option can be used to copy selected
text to the Windows clipboard.
In the File Transfer window the Copy option can be used to create a
temporary copy of the selected file(s) in the File Transfer window.
This resembles using the Windows clipboard: You can copy files to a
temporary storage and paste them later into another location.
If you do a new copy operation when the previously copied files have not yet
been copied anywhere, the previous selection is lost, as the new selection
replaces the old one. Note that the copy operation is not available until you
have selected one or several files or folders.
The keyboard shortcut for the copy option is Ctrl+Insert.