Hi Chris,

You could setup a Certification that allows users to retake the exact same course again. Previous completion including views of resources and quiz attempts are automatically deleted, so that when the user retakes the course, it's as if they've never done it before. (Previous completion dates are stored in reports.) The tricky piece here is that Certifications work based on automatic reassignment by a certain date, so you would have to have any users assigned to it retake it regularly. 

I would recommend contacting your Totara Partner company as they will have more insight into your setup and needs and may have other options or potential customization to suggest. 

The other option would be to go into the original course when the user needs to retake it and deleting their attempts at the quiz so they need to retake it. That's a manual process though so it could be a bit time heavy.

Cheers,

Lori