Yes. If you need to move a user from one portfolio to another, you should first go to the list of users within your portfolio and follow these steps: Click on the drop-down menu located on the right side of the client's name. Then select Advanced Options > select move from the drop-down menu to transfer the user to the destination portfolio.
To duplicate a user, follow the steps above and click on copy instead of move. Then, select the destination portfolio where you want to duplicate the user.