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.
Unfortunately, there is no 'Require all form fields' etc button in JotForm.
However, you can make require multiple fields this with one Conditional Logic. In this case, there should be an action to trigger the condition. In other words, you need to define a basic condition to make all other form fields require.
Please have a look at the following instruction:
1- Open Conditions in the Settings and add a new condition (Enable/Require Field).
2- Set up your condition like below.
If you need any other details, please feel free to let us know.