Hello Liliane,
Thank you for contacting us.
Are you trying to rotate the questions or the choices? We have a syntax that allows the randomizing of choices in this guide. Regarding randomizing questions, unfortunately, there is no easier way of doing this currently as this functionality is not built into the syntax. You can however use an approach similar to what is on the attached form. It may help you achieve a result that is similar but not the most effective.
Please let me know if you have any further questions.
Regards,
Evans