1. Yes, you can zoom and pan manually or by code. There is also Axis.update that can be used to change X and Y axis labels in real time. As a last resource there is always an option to just rebuild a chart.
API:
http://api.highcharts.com/highcharts#Axis.update
2. By default you can use renderer.text or use the Annotations plugin -
http://www.highcharts.com/plugin-regist ... nnotations
API:
http://api.highcharts.com/highcharts#Renderer.text
3. Stacking is supported for area, bar, column, etc. See demos -
http://www.highcharts.com/demo
API:
http://api.highcharts.com/highcharts#pl ... s.stacking
4. Yes, drilldown is supported. You can read more about drilldown in Highcharts API Reference -
http://api.highcharts.com/highcharts#drilldown
5. There can be multiple plots in one chart (Demo:
http://www.highcharts.com/demo/combo) or multiple charts in one page (Example:
http://jsfiddle.net/tbpzwd2a/)
6. Short answer - yes. Long answer - see:
http://www.highcharts.com/docs/extendin ... highcharts
http://www.highcharts.com/plugin-registry
http://www.highcharts.com/plugin-registry/howto
7. Yes, Highcharts are being updated and upgraded all the time and new release are being published for bigger or smaller chenges. You can read more about changes in Changelog:
http://www.highcharts.com/documentation/changelog
Newest released codes are available using
http://code.highcharts.com/ (i.e.
http://code.highcharts.com/highcharts.js) or can be downloaded from Highcharts download page:
http://www.highcharts.com/download
You can also access next release candidates version of code using github's
http://github.highcharts.com/ (i.e.
http://github.highcharts.com/highcharts.js)
8. Yes, responsive design is supported by default. For examples see demos:
http://www.highcharts.com/demo
9. You can use ajax calls - it is supported. More in General Documentation:
http://www.highcharts.com/docs/working- ... /live-data