In many projects we have the same request from end users: “To rename Status Approval column”. As you already know, this column is not visible in List Settings and therefore it cannot be changed as many other columns. But here is a simple trick:
- Open “List Settings” and edit some column (eg. Created)
- In the address bar at the end of URL, you will see the field name (&Field=Author)
- Replace this value with &Field=Status%Approval
- Hit enter and you will get the edit field for existing label
- Change and confirm!