Custom Messages sent to approvers AFTER Proof is created

When creating a proof, there's an option to attach a custom message to the people its being shared with and sent to for approval. This is good for explaining what the document is, vital information, and why approval is required.

However, there is no option to attach a custom message when sharing and requesting approval after the proof is generated. There's still a way to share and have approval statuses but there isn't an option for a message to be attached.

This would be an easy and great improvement.