How can I save the state of Umbraco form (a single step form) as a draft or save for later?

How can I save the state of Umbraco form (a single step form) as a draft or save for later?
My requirement is to save the umbraco form (a single step/page form) state as a draft by adding another “Save for later” button with Submit button, please me know your recommendations will be highly appreciated. Looking forward to hearing from experts…


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/109575-how-can-i-save-the-state-of-umbraco-form-a-single-step-form-as-a-draft-or-save-for-later