Q: I am using FCPX 10.1.3. and want to duplicate my project, and its complete resources, to a different hard drive.  When I click "duplicate", it automatically duplicates the project in its current hard drive.  How do duplicate to a different hard drive

Since projects are now stored in events and events are stored in libraries, you need to create a new l;bray on that different drive or open an existing library on that drive. Then duplicate your project and move it to the new library. It will copy the media. Then use the Consolidate Project File command to round up any external assets; there may or may not be any.

Russ

The problem is that without the window to choose the format I want and where to store it, it is a mess.  It goes to unknown or undesired target.

I need the window to specify the format and destination.

WWhat are you duplicating in FCP? A project? It duplicates into the event it was in. That's a duplicate. If you want to do something else you dont want to use the duplicate function.