Approver Screen needs to allow editing too

Dear MDG Experts,

I'm trying to find out what controlls the Approver screen in MDG and disables the editing of all fields.

In my scenario I need the Approver to do some field changes (like the Master Data Specialist) and then press the Approve button.

Please advise if you know how to make the Approver screen fields editable (not read-only).

Thanks in advance,

Boris