If you would like to see a log history of Actions performed upon one of the Folders within your Imaging database, you can access that history from the Folder's Details Panel (accessible by clicking to the right of a folder's name) and then clicking History:
As you can see in the History for the folder above, you are able to view who performed the action, what the action was, and the date/time the action occurred.
If you click on an individual action within the Log History for a folder, you'll see further details that may provide additional information about the action:
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