Does anyone know if there is a way to customize what data is displayed in the bubble when you mouse-over a point on a plot in html output? I figured out how to add these "tool tips" using the imagefmt = staticmap option, but it's not that useful for me to be given the Observation Number. Is there a way to customize what information they tell you about a data point to make it something more meaningful like StudentID or ZipCode (depending on observation level of the data)?