We have added your suggestion in our TODO list and we will consider it when planning the future versions of Telerik Reporting. I have updated your Telerik Points for the suggestion.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items.