Thanks for your quick response; appreciate it!This feature hasn't worked since earlier version; I have to ask: why the functionality is made available to users when there are issues and not working?  can you tell: is AEM still developed/maintained by day software developers?Thanks.

Hi folks, We are also looking at this functionality since we started using AEM 6.1; it just didn't work!!! Now we are trying to use it in AEM 6.3 and it has lots of issues and the functionality is not stable. You can access the version compare ( compare an old version with the current page copy) fun...