Position Notification Edit button

Summary:

The position approvers have no visibility over the positions; and the notifications they need to act upon contains only position code and comments.

The request is to increase this visibility but only to the notifications.
We have activated various security privileges to their roles and managed to increase visibility over the notification.

Since these privileges also grant edit actions we have used page composer/structure to restrict the access based on el expression.

Now we are stuck on the notification itself; as once it is claimed it contains an Edit button that allows for the position to be edited.