Multi-step-form with radio button and no next button

Hi guys,

i am basically looking for a way to build something like this: Multi Step Form Webflow - Webflow but without the next button.

Basically it should move to the next question the moment someone clicks an answer, like how this form works: Enpal - Solarrechner

The next and back buttons should just be optional.

How could I build that in Webflow?