The scenario/use case (including an illustration) is explained here in this ticket: http://www.telerik.com/account/support-tickets/view-ticket.aspx?threadid=926023
You can upload it somewhere on public share and post a link to it in the comments.
I would like to add a screenshot to illustrate what i mean. Can i somehow add an attachment?
Thanks for this suggestion, Nihat. Can you elaborate further and explain a sample scenario/use case, or provide a visual mockup where this functionality is applicable? Thanks.