Show questionnaire questions in a list view when client is filling out

As opposed to showing one question at a time. Questionnaires can be very detailed and I’d like the option for my client to jump around questions they can answer first and then come back to the others later if they aren’t sure. This also piggybacking off of allowing clients to save questionnaires and come back to them. (Of course, don’t allow them to submit the questionnaire without answering all the required questions, as per usual.)