I have bar chart which has very large variation in values (https://cloud.highcharts.com/show/NKqHVk7p6). The chart is embedded in a page (https://www.lounaistieto.fi/tilastot/vaesto/) which is responsive. Responsiveness further increases the problem caused by high value variation.
Zooming is enabled in the chart, but I would like to make things easier to the user and add a zoom in and zoom out icons (magnifier glass style) to automatically zoom in to smaller values. In this particular chart the zoom in level should be approximately +-200.
Is there an easy way to add such icon buttons in Highcharts Cloud?
I also have another question concerning this chart. I would like to add value labels in the chart but only if they fit in. I managed to control the visibility of labels according to label value (e.g. only values > 300 are visible) but that is not very neat solution in responsive charts. Is there a way to adjust value label visibility according to actual bar width?