Controlling View Access to Proofs On Project

Hi all - Has anyone figured out a way to only show that a proof is available on a project to certain people and if those people are not on the proof, they will not see that a proof is available? We have some sensitive projects where we want to limit the view access of proofs. (not just being able to leave comments or make decisions but to even see that it is available at all) let me know if anyone has found a worksaround. Thanks! Aya Elsoukkary, Marketing Operations Floor & Decor