Deactivated Workfront users removed from Proof User list

Please make it possible to remove the deactivated Workfront users from the Proof "Users" tab without deleting their Workfront accounts.

If that cannot be achieved, then can you please add sort or filter functionality to the Proof Users area so that we can hide those deactivated users, or at least group them together.

We're getting overwhelmed by all the deactivated users mixed in with active ones and having visibility on who has which permissions.