Multiple Checkboxes - Only one choice allowed

Hi Michel and thank you for your post.

At the moment, this is not possible without extra code. Since this is a unique use-case, you could write some custom JavaScript code to perform this action.

If you need help in writing this piece of code, I could possibly write it myself. Please send me an email with the URL of the contact form and the checkboxes you would like this to apply to, and I could send you the code to add in your template or using a separate extension to add it to that page.

Thanks again!