Can a user fill out long form, and recover / continure filling out the form

Hi,

Is it possible for a user to be idle for a ling time, and then continue to fill in the form?
How long can the user be idle.

Also

Is it possible for a user to - after accidently closing the form field, and then restore what the user typed in?

Yes, there are two ways to do this. One is via Session method https://www.jotform.com/help/97-How-to-Save-Forms-and-Continue-Later. This uses Page Break on your form to work.

While the other method one is via Autofill. Here is the guide on how to enabled Autofill on your forms. https://www.jotform.com/help/227-How-to-Enable-Auto-Fill-on-Forms

Please take note:

Enabling the AUTOFILL feature will automatically save the form's field values locally (browser local storage) for up to 24 hours. The saved local data is cleared when the form is submitted, or after the 24 hours from the form access time. This way, your users don't lose any single data if they accidentally close or reload their browser while filling out the form. Please note that your users need to use the same browser in order for the saved field values to autofill in the form.

Hope this helps.