What is meant by Change Stacking?
Change stacking is the ability to accumulate a set of changes over a period of time and report them periodically. For example, you may want to monitor the page every day but report the audit trail of changes once a week (or every hour and report once a day). This will be useful if you can separate the changes and add some semantics to these changes. Will be useful for webmasters and others who track certain status changes along with the rate of change. We do not provide this feature in the current retail version. Can be done using the API to a limited extent.