ItemHoverness: Boolean
The ItemHoverness property determines whether a chart item can be hovered
Use the setItemHoverness method to set the property value and the getItemHoverness method to get the property value. Property value cannot be set from JSON.
The getItemHoverness method receives the elem_id parameter: identifier or item which is hovered over and this attribute must be returned.
The setItemHoverness method receives the following parameters: elem_id - identifier or item with hovering over, isActive - attribute of hovering over the item.
The property is set to True if for specified item hovering is set and False value if hovering is not set.
The example of use is given in the page with description of the BubbleChart.hoverItems property.