Sorry for bringing this old thread alive.
Is "increasing or decreasing the Y-Value" as illustrated by the OP already supported in the current release?
For that is one of the requirements but must be applied to a bar chart. And there's also a requirement
regarding gauge controls, when the gauge is on focus (or hovered) it should light-up (the tickmarks and/or needle),
is it possible in your gauge controls?
Im tasked at evaluating frameworks from DevExpress, Infragistics, and of course Telerik...looking for such features/capabilities.