PN:Form personalization for EDIT LEASE on billings tab

 Dear all, I am trying to prevent a save from happening on the billings tab of the EDIT LEASE form. I have tried the following form personanlizations to no avail:

I have a dff setup that is linked to ATTRIBUTE1 where user has to set it to either Submit, Draft, Reject or Approved. We use this in our new workflow which works perfectly.

Now after the lease has been approved and a user needs to come back into the lease and edit the lease by let's say adding a new bill line, they would click on the edit lease button and then click on the Billings tab.