I would like to populate the data from previous submissions

Hello, has this feature been provided now?

Are you looking for a feature where your users can save the current data and continue it at a later time? We do have 2 ways that you can use:

How-to-Enable-Auto-Fill-on-Forms
This function will save the form data on the user's browser. Please take note that the user should use the same browser. Here's a user guide: https://www.jotform.com/help/227-How-to-Enable-Auto-Fill-on-Forms.

How-to-Save-Forms-and-Continue-Later
This method will save the data on our servers. This will require you to create 2 forms, the first form is form the session and the second is the main form. Here's a user guide: https://www.jotform.com/help/97-How-to-Save-Forms-and-Continue-Later

Hope that helps. Thank you.