Document history
Displays the history of a document.
General buttons
Buttons on the top right, whose functionality applies to the entire document including its versions.
Upload new version 
Uploads a new version of the current document and creates the versioning information.
Download 
Downloads the selected document to the local directory.
Lock 
Locks the selected document for editing by other users. This symol is displayed if the document is not locked.
Unlock 
Unlocks the selected document and enables editing by other users. This symol is displayed if the document is locked.
Delete 
Deletes the current document and all its versions.
A confirmation prompt is shown. The document will be deleted if you click Delete. If you decide not to delete the document, click Cancel.
Table
Timestamp
Shows the timestamp of the change to a document to the second, as well as the date of the change.
User name
Shows the user name that the user who performed the change was logged in with.
Event
Shows the change made, for example, an update of the document relationship or a change to a document's metadata.
Details
Shows the event in detail.