Coursepress technical options changing

Hello! I have installed the course on my website and I have several questions
First of all, I want my course will give possibility to change all wrong answers at once at the same page, but it gives me the possibility to change only one question. How can I change it? (I added a screenshot below)

Second of all, how can I to saperate the option "save and exit" in the end of any page of the course I have made. I want to make it two saperate options.

And finally, I would like to know how can I add a picture to the course page (the same page where my clients see all my courses)

Thank you very much for your answers!