Existing reports are able to be duplicated to save you time creating new reports from scratch when only a few changes need to be made.
Please navigate to Reporting V2 to view your list of reports. Please note that your role must have access to create reports in order to duplicate existing reports.
Click the actions columns then select duplicate:
You will then be asked to name the report. By default the report will have copy added to the end of the existing name:
Once you click Save, the report will be added to your list of reports: