How to simulate a "draft" task

Hi,

I need to know if it's possible to simulate a "draft" task, I mean: I have a process like this:

- an istantiation form is populated by a user (human task)
- usually the second task is another human task where another user (different actor) approve or not the previous submitted data

Now the change that I want to made is to add a "draft" checkbox in the istantiation form in order to keep that data "pending" and visible only to the Initiator user (until he uncheck the "draft" input).

At the moment I can:
- submit the istantiation form data as "draft" (draft checkbox checked)
- edit the form with the same user

but after the first update (keeping data as "draft") the loop stops and I can't edit the form a second time.

This is my Diagram: https://imgur.com/yJxLanR​​​​​​​

Is it conceptually correct?

I'm using Bonita Studio 7.10.3

Thanks