Option to pass questions in a question bank and answer those later

Hello,

I'm currently working on exams done in Storyline that draw questions from several question banks randomly. I would like to give to the learners the capacity to jump some questions and to answer them later.

Without a question bank, that would'nt be a problem, but with a question bank this seams just plain impossible to do.

Here's the furthest I've gone : 

- I created a "review unanswered questions" slide that I stick to the end of the question bank

- I made 5 variables to store the questions slides ID of the question the learner jumps

- I would like to show links to the learner so before he goes to the result slide, he can answer the jumped questions.

Now the slides from the question bank aren't listed in the trigger options, and we can't refer to a slide using its ID ("Slide.ID" variable). Ideally, it would be great if one could refer to a slide from a question bank using a variable in the trigger to refer to that slide, such as "JumpedSlideOne", "JumpedSlideTwo", and so on. 

I know of the option to show the question bank draw in the menu, and it enables to go to any of the slides that are randomly drawn, so this should be possible without showing any menu ? And without giving learners any question references, such as slide titles - which opposes the idea of a random question draw ...

Have I missed something ? This feature seams quite a fundamental one when doing quizzes, i find.