create new button

hi every one, have you a procedure or a tutorial that show how can we create a new button for the quiz. actually, i want to create two quizs and to add to the first one, a button to jump for the second part instead of finish button. also, i need some others button of different types, so i wonder if you can help me with standard procedure that explain how to do it. I m sorry that i ask all these questions, i m new with drupal and want to work with opigno. thank you in advance Sanachr