JokerQyou commented on issue #18236:
URL: https://github.com/apache/echarts/issues/18236#issuecomment-2908466181

   > I would also like to have the ability to hide data points and only display 
a specific point when hovering over it.
   > 
   > I’m not sure if this is currently possible, but if not, it could be added 
to the specification.
   
   This is actually possible, I believe it's supported from v4. You just need 
to specify `showSymbol: false` for series. Hovering tooltip would automatically 
show the symbol. You can adjust symbol and sizes as ususal, they would be 
effect on hover. For v4 see [this 
example](https://www.devdoc.net/web/echarts-site-20190821/examples/en/editor.html?c=dynamic-data2),
 for v5 
[here](https://echarts.apache.org/examples/en/editor.html?c=dynamic-data2).


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