Diagram ruler cursor position display

Hi, this goal appears not to be directly supported (though I'd love to be proved wrong), so really it is a question of how I might approach the requirement.

When moving the mouse around within a TatDiagram I want the rulers to reflect the mouse position with some line that moves up and down the vertical ruler and left and right on the horizontal ruler. I'm sure I'll need to do the implementation mostly myself, manually, but if some guidance could be offered on the best way to approach this at the very least, that would be much appreciated.

Thanks

Unfortunately there is no such feature in Diagram Studio.