With the new version of Eval&GO, there’s no need to insert a “Save” button to enable your respondents to save their answers during the questionnaire!
As soon as your questionnaire contains more than 1 page, each time your respondents click on the “Next” button, their answers are saved using their browser’s cookies.
If they reopen your questionnaire from the same link and the same browser (on the same computer/smartphone), they’ll be able to go back to the last page where they left off.