Tap on the History button at the top left of the screen. This will open a new view in the right hand pane. The history can be viewed by Replacements, Wear, Versions or All.
Select an option as follows:
Replacements - Shows what panels were replaced on a particular date.
Wear - Shows what wear results were added on a particular date.
Versions - Show changes to the layout, where panels were either removed or added.
All - Shows all activity.
Once a selection has been made from the history buttons (the default is All), users can tap on the Previous and Next buttons to progress through, they can use the slider control, or just tap directly on the list.