Q:

Highchart Bar table tooltip dissapears on hovering the tooltip

https://www.highcharts.com/demo/column-stacked
Highcharts is a JS API that allows you to easily generate bar charts.  The above link shows a Highchart stacked column table.  The bars show some information in a tooltip when you hover on them.  Highchart allows us to control the delay of the tooltip with this JS parameter hideDelay: number but there is no such parameter to hold the tooltip when you hover on it. 
What I want is to make the tooltip stay even when I hover on it.  Tooltip only stays when I hover on the bars and disappears a few minutes after I take my cursor away from the bar. 

A:

Set plotOptions.series.column.stickyTracking to true. 
plotOptions: {
    column: {
        stacking: 'normal',
        stickyTracking: true
    }
},

jsFiddle
API Reference: https://api.highcharts.com/highcharts/series.column.stickyTracking

