How to highlight the latest data point?

Grafana Plugin Development
1

Currently I need to mouse over the line to show the data point on map, does there any way can set up automatically highlight the last data point every time I run the report? Then it will always high light where is my current location.

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2

Very old topic, but maybe my solution helps someone:
I did a second data query (in my case influx) identical to the first one. Except in the second line i added: the “last()” statement to only get the latest datapoint

from(bucket: "mybucket")
  |> range(start: v.timeRangeStart, stop: v.timeRangeStop)
  |> last()
  //more data filtering

then I added a new map layer (marker) on top of the existing one using this second query and changed the formatting options to a different color and symbol.