With Save and Resume plugin users can resume the quiz which they left unanswered midway. It works as an auto-save and can tell the user to retake a given quiz if they have already attempted it.
Once you have purchased the addon, you will have access to download the addon. To install, simply upload the addon as a normal WordPress plugin. To do so, go to the Plugins page and click Add New. Then, click Upload.
From there, upload the zip file that you downloaded when downloading the addon. Once the addon has uploaded, you should now have the plugin QSM – Autosave listed in your list of plugins.
Activate that plugin. Once activated, the plugin will add a new tab called Save and Resume into your Addon Settings page found in the Quizzes/Surveys menu.
Now, go to the Addon Settings Page and open the Save and Resume tab.
Enter the addon license key which you got while purchasing the addon, into the Addon License Key text field.
If you want to show the user the results of the already completed quiz if they return to the quiz/survey page then select “Yes”.
Also, if you want the user to retake a quiz you can select “Yes” and hit the “Save Changes” button. Now, it has been configured you can see the results when the quiz is live.