How to create a Save and Continue Later form?

I am creating a form for purchasing a new vehicle and I am needing to slowly fill out the form, not just submit and then that is it. 

Is there a way for me to have a form and keep going back to that same form?

To my understanding, you would like to create a form wherein form submitters can save the unfinished forms and continue answering it at a later time, is that correct?

You may refer to this guide for you to be able to accomplish that: 

How-to-Save-Forms-to-Continue-Later

Let us know if this is the feature you are looking for or if you have any questions about the said feature. Thank you.

Thank you!