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.
Thanks for the feedback but I'm afraid there's no way (for now) to manage multiple fields in V4.
With V3, you're probably familiar with this option:
Related guide: How-to-Manage-Multiple-Fields
This really comes in handy with long forms so I would raise this as a Feature Request to be added in V4. We won't be able to give you any assurance nor timeframe though but you'll hear from us on this thread if/when there's an update.
For the time being, use the Duplicate and Remove icons in V4 to manage your fields: