simskberna opened a new issue, #20833:
URL: https://github.com/apache/echarts/issues/20833

   ### What problem does this feature solve?
   
   When working with multiple series on spesifically line charts currently you 
can not disable shared tooltip. It always shows all series' tooltips. But 
sometimes you may want to use seperate tooltips. Making trigger option to 
'item' does not work because it makes harder to hover a point. With this 
feature you should be able to use trigger:'axis' and show the closest value's 
tooltip on hover. Many chart libraries have this feature currently.
   
   
   ### What does the proposed API look like?
   
   I should be able to hover somewhere in chart area (not just the points in 
datasets) it should find the closest value of the point i hover in dataset and 
show its tooltip. i should be able to control this with a parameter. if its 
true show both tooltips and its not the one i described above.
   
   <img width="604" alt="Image" 
src="https://github.com/user-attachments/assets/2e5e3a97-18ae-4ad5-8772-378150097b68";
 />
   <img width="604" alt="Image" 
src="https://github.com/user-attachments/assets/1189df92-4a17-4eaa-9e85-f993ff06c947";
 />


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