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.
May we know what field you would like to jump to? And when do you like this to happen?
You can jump to different fields only when an error is present, you can find that option under the "Preferences" setting.
We also have a scroll to top widget that allows you to jump to the top part of your page which a click of a button. Here's the page for that widget: http://widgets.jotform.com/widget/scroll_to_top
If I misunderstood your concern, please do provide us more details of what you would like to accomplish. Thank you.