Quiz (Question Set)

Hi

I am very new to h5p and am basically leanring by trial and error. I made a quiz (question set) on moodle (v3.9) using h5p, but the finish/submit button doesn't appear at the end for the students to actually submit the quiz and thereby complete the activity. 

I have attached an image of the final page once all quiestions have been answered as it appears, sans the submit/ finish button. How can I rectify this?

In the Quiz (question set) with Multiple Choice, I've check the box "Réponse requise avant que la solution puisse être affichée" but students can still click on "Vérifier" and the answer will appear. How can i prevent that ? 

I am using the Essay content type in an activity for practicing paraphrase and summary. At present, I can only give automated feedback for keywords that score at least point. However, I would also like to automate feedback for keywords that score zero points.