Would it be possible to create an "original/old content" button for viewing the edited posts in normal mode?
^{- Basically, having everything that's on each dedicated post page in reverse but within the overview of the edited posts tab instead.}

e.g. Post Changes History

• > OLD CONTENT

It would be great if there was another option to pick the start and end dates as well...
_{- It might come in handy for monitoring behavioral changes of users within a certain period ^{(e.g. hacked accounts)}.}

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BTW, thanks for implementing a suggestion of mine
^{- I'm a big fan of the pie chart's implementation for boards activity but it might be better if you used unique colors for each.}