If this option is enabled, the survey pages will be shown in a different and random order to each respondent.
In your survey and on the page that you would like to start the randomization, go to the Pages tab and click on Edit Survey Logic Rules. Add New Branching Logic first by setting the if statement that will trigger the action. In the dropdown list for the “then” part of the statement, select “randomly traverse specified range”. Add in the pages that you would like to be randomized in the first field and the page after the randomization is done in the second field, and you’re done.