How to highlight a marker when clicked on a line chart

Hi @ll000.zhang - welcome to the forums. I've found the best place to start with charts is this excellent tutorial post Quickly implementing PlotlyJS examples with Chart from @Kabirdas. The overall trick is that you need to create a JavaScript Query that generates the Plotly JSON for the layout.

Give it a shot and let us know if you get stuck along the way. Happy building!

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