This is a demo tutorial. While there is no step-by-step commentary available (yet), the live demo below is fully functional. Feel free to open it for full source code.
These are two demos that show how we can use chart cursor's
cursormoved event to trigger hover effects on multiple series' bullets.
Changing appearance of bullets
This will make bullets grow larger on the category currently hovered by chart cursor.
Showing on hover only
In this demo, the bullets will be hidden except on the currently hovered category/date.