JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
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.
There have been several requests to bring this functionality back and it is should be added back quite soon. In the mean time, while editing your form, if you reload the page from this URL:
It will bring up the old UI. The option to hide empty fields is still available from the old UI.