Having a submit button appear on screen as soon as the user corrects their error

To Scroll all the way down ?

I'm afraid that having a Submit button appear underneath the error, upon user correcting the error, is not something that can be achieved by our forms directly. Your user will have to scroll to the Submit button in order to make their submission.

You could work around this by using the form's source code, but there are caveats to using modified source code of the form:

https://www.jotform.com/help/104-How-to-get-the-Full-Source-Code-of-your-Form

Benefit is that by using your form's source code, you can add any custom scripts into the form that would add your desired functionalities.

The down-side to this method is that any time you would make a change to your online form here at JotForm, you would have to get the latest source code of your form and then re-add the same custom script to your updated source code. This means that updates won't work automatically - you will have to get the code after any change, add scripts to it, and replace the embedded code of the form with the updated one.

Another down-side is that unless you are familiar with web technologies such as JavaScript, you may need to hire a developer to help you create the functionality.

What may be much easier instead is to add a Submit button to each page or form collapse section of your page - so that your user doesn't have to navigate all the way to the end of the form, but can only scroll to the bottom of the form collapse or the page.

I hope this helps.