How do I create selector for new and returning users?

For a simple LMS (that can only deal with outputs such as whether the user completed the course or failed) we need to add to all our eLearning courses a choice for new users to go through the learning part of the course and then the knowledge check and for existing users to go straight to the knowledge check. We have storyline and Rise courses as well.

How about we create 2 "wrappers", one for Rise and one for Storyline?

 

The Storyline wrapper will be slides inside of a Storyline file where slide one will be selectors between new and existing users, new users will be directed through the learning slides (an actual imported Storyline course) then taken to assessment created in Storyline. If the assessment is passed, then one single sign is transmitted from this Storyline package to the basic LMS that the user passed it. If not passed, then the user is given the choice whether to take the assessment again or start from the learning part and then assessment. If failed again, the user has to take the learning again and the assessment again.

 

The other package is the Rise wrapper. Could we amend existing Rise courses in such a way that creating a new chapter one which would be the selector, the user would have to click on new or existing users. The new button would simply take them to the next chapter (which is the learning part) all the way to the assessment. Could then the other button (existing users) take them to the knowledge check / assessment inside the Rise course straight away? And could then the Rise settings be set up in a way to reflect the above described pass/fail logic?

Any suggestions welcome!
Thanks