To enable users to modify their choice for an answered question, you can use the Submit All button. To insert the button, click Submit All in Preferences (Edit > Preferences > Settings > Submit All).
The Submit button on every question slide in the quiz is replaced with the Submit All button. Although users can see this button on every slide, Adobe Captivate displays appropriate warnings if they click the button without attempting all the answers. These messages can be customized in the Quiz Preferences (Edit > Preferences > Settings > Submit All Messages). You can also change the look and feel of the message box using the Object Style Manager (Edit > Object Style Manager > Runtime Messages).
The answers are reported to LMS only after users click the Submit All button on the last question slide.