How to allow students to return ONLY to questions they did NOT answer?

asiddiq
Community Novice
I'd like to set up quizzes so that students see one question at a time but are able to skip and return to a question they can't immediately answer.  Right now if they press "Next" they're moved to the next question and can not return whether they answered it or not.  
"Show one question at a time" allows them to return to any and all questions. 
Is there a way for students to return only to questions they did NOT answer?
"Lock questions after answering"  below "Show one question at a time"   does not do that.  Which I find strange because it says Lock questions AFTER answering.   So if it hasn't been answered it should NOT locked, correct?
Thank you Smiley Happy
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