You can download the scores for a scorecard as a CSV file. The file will include all of that scorecard's results for all team members, even if the scorecard is private. Click Get Results (CSV) at the top of the page. After confirmation, a spreadsheet is downloaded to your computer.
Select the relevant scorecard, click ... to see the More menu, then click Duplicate. A new scorecard is created with a suffix of (1).
To rename it, click ... to see the More menu, then click Rename.
Select the relevant scorecard, click ... to see the More menu, then click Remove. After confirmation, the scorecard is removed from the list but is not deleted. You can ask your technical administrator to restore it.