Currently, visitors have to click the "back arrow" several times to go back and edit their previous answers, and then re-enter the answers after the edited ones. For example, if someone is currently at step 12 but wants to edit the answer at step 5, they've to click the "back arrow" several times to go to step 5 and then re-enter their answers for steps 6-12.
It would be nice if one could just scroll up and click on the "edit" button to edit his previous entry, so he can just scroll back down to continue the rest. If there's any conditional logic that's affected after the last updated entry, visitors will have to re-enter their answers from the last edited entry.