Contact form “Multi-Step”

Hello,
I am in France and I am using a translator to translate my application. I hope my message will be understandable.
I am currently creating my website locally with WP and WAMP.
I want to create a form with Contact Form Multi-Step.
I found some videos on the internet showing how to do it and so I created my first 2 forms (STEP 1 and STEP 2).
For STEP 3, I would like the form to summarize the information that has been entered by the person filling in the form and, after checking it, to send his message.
I found a site where they explain what to do, but it does not work: https://webheadcoder.com/contact-form-7-multi-step-form/
Could you guide me to finalize this form and more precisely the STEP3?
Thanks

• This topic was modified 2 years, 9 months ago by dso31.