What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
If you wish to allow your users to select multiple items, you will need to use the check box instead. Please note that the radio button field is designed to only allow your users to select one item on the list.
If you wish to limit the number of items selected in the check boxes, you can do that by clicking the gear icon on your check box and select "Edit Properties". In the "Properties" window, you can set the maximum and minimum selections.
Let us know if you are still having problems on this.