That's a tough one, we are currently working on fixing this functionality as we found a bug in it. The issue is currently in progress and hopefully we'll be able to include it in our Q2 release. You can tract the issue status and vote for it in PITS on this public URL
. Please excuse us for the inconvenience caused.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items