Is there a way for Edit/View Form's fields will become read-only once FA is in completed status?

Summary:

Hello there!

Our OFS is integrated with C2M. Once the FA is completed from OFS, the interface process is triggered and sends the data information to C2M (e.g. meter status = OFF, etc.). However, some field reps go back to the completed FA, updates any field information and presses Submit button. The updated information is saved in OFS but it will no longer be sent over to C2M since there's no interface process anymore once the FA is completed. This becomes now "out of synch" between OFS and C2M.

I know we can put in each field a "read-only" criteria if activity is completed. But there are a lot of fields in our Edit/View form where almost all are Read/Write or Mandatory and we have 6 User Types. It would be tedious to have each field add the read-only criteria, in my opinion. Is there a way we could have a "quick" configuration where, if the FA status is already completed, all fields become read-only? Or even when the user presses