Generally the chart control is a bit different from the rest of the ASP.NET controls as it is rendered as a image and not as a composition of different stand-alone visuals that can be clicked and interacted with. We will forward your feedback to our developers but unfortunately we have no immediate plans for the implementation of new design-time layer for the ASP.NET control at the moment.
the Telerik team
Registration for Q1 2011 What’s New Webinar Week is now open. Mark your calendar for the week starting March 21st and book your seat
for a walk through all the exciting stuff we ship with the new release!