You can copy, move, delete, and rename any file from any of Word's File, Open or Save forms so these aren't essential commands. Just select File, Open (ALT+F, O) or File, Save As (^KT), navigate to the file you want to copy, etc., highlight it,and do your changes directly in the Open form (its a bit like a mini Windows Explorer - Right-click for more options), then Cancel the form to close it.

Note: ALT+F, O is a substitute for the usual Word File Open command.