Dashboard visualization tooltip change position where value changes

I’m new to grafana (just creating a dashboard based on someone else’s hard work). I’ve mostly been able to find answers to the questions I’ve had as I learn (there’s a lot of great information directly from grafana and also from the community).

I’m mostly interested in time series visualizations. When I turn the tooltips on, I want the value shown in the tooltip to be based on the closest point in the past, not the physically closest point (ie only change the tooltip when the value has already changed.

For example, if I have two data points at t=1 and t=2 and their values are 5.0 and 10.0, when I move the cursor in the time series visualization, the value changes from 5.0 to 10.0 at t=1.5.

I have the Line Interpolation set to “step after” so the chart matches the data, but the tooltip doesn’t follow the chart.

Is this possible?