After a decision has been made on a proof, there is often the need to review it, especially when a revision is planned.
You can access the proof by opening the current activity's details window and clicking 'View Proof'
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The proof will open by default to the most recent version
Clicking the Version Dropdown will allow you select any of the particular stages of the Proof, as well as access the 'Compare Versions' tool
Selecting a particular version will display the consolidated annotations for that version in the sidebar