Can I take an existing completed report and copy it to a new report?

Yes, you can.

You need to click on the 3 dots at the right of the report and click on “Duplicate”. A window will open, and it will ask you to complete some fields.

It will also ask you if you want to duplicate it on another template or use the same one. 

And at the end it will ask you if the Red flags and concerns were resolved or not.