I wanted to suggest a little light or icon indicator to display in the listed action for proofing. When working with multiple creators and many actions in the list, we have to open each one to ensure a proof has or has not already been sent. With an icon/indicator, we can see that a proof has been sent and the status of the proof itself. Green for approved, red for changes, yellow for still waiting for approval. It just improves workflow without opening each action in the list.