Please add the feature of spacing between series

This would allow retrieveal of max and min data for that series. On a multi-series graph the axis extremes are nice, but being able to grab the extemes of each series would allow for more flexabiilty in data display.

Chart options strongly depend on chart type and other options. For example, ticks on x/y axis. Depending on what type was chosen (linear, logarithmic, datetime or category), ticks are configured differently.

And I really suffer when I read docs and don't clearly understand which properties work with others, and which are useless together.

I suggest you to update docs, or implement chart options validation, or even provide us some external service to check, if given options are valid. In ideal world, if options are not valid, it would say why and maybe suggest something.

It would be great if the borders around the charts had similar controls to that of CSS where we could edit the border colors and thicknesses individually. My one example is that we need to have only the left border of a chart thick red while the rest of the borders are to remain thin and gray. Here is an example image: http://connect.urnerbarry.com/public/albumphoto/1d/09/0914e1ba.PNG?c=332c

There is an old idea that is similar but doesn't appear to have any replies other than mine here: http://highcharts.uservoice.com/forums/55896-highcharts-javascript-api/suggestions/4974960-can-we-have-series-border-options-like-left-border

Being able to configure not just the fill colour of the bars in a chart, but the outline colour as well.

Styled mode is great but often with dynamically generated charts (i.e. when a user can customise a chart live) it would useful to be able to allow colours to be set on series. In our case we have a common look for all charts but also a colour picker.

Has the option of being able to set series colour in the same way as you would with styled mode turned off been considered? There's an argument that setting the series colour is data not presentation and therefore should be permissible with styled mode is enabled.

It would be nice to have a default formatter for displaying numbers in scientific notation

I want to do something after the tooltip shows.
And I found the "point hover" event

But when I use the "crosshair" option, it doesn't need to hover the points to trigger the tooltip, anywhere of the chart triggers the tooltip

So now I can only do something when user's mouse hovers the points

I want to do it when the tooltip shows,

So i think it's better to add a "after tooltip show" event in options.

thanks

It would be nice to have an option to export chart (as PDF) to datauri string instead of file.
This can be done now indirectly, by obtaining chart's underlying svg, calling svg2pdf and finally using jsPDF doc.output('datauristring')
[which returns the base64 dataUri] instead of downloading file.

Maybe as an option in 'exporting' object?
Or by exposing new method, i.e. Highcharts.exportToUri() ?

Or maybe there's some simpler way that I am not aware of?
Thank you.

It would be great if there were a feature to add axis labels to the existing Sankey chart at each level. Something like this: https://i.stack.imgur.com/cYsNT.png

I notice that this has been previously mentioned in the Sankey Diagram thread (https://jsfiddle.net/7aa18mws/). However, in-built support for this on multiple levels would be great.

We have a requirement to generate Smith Charts. Can Highcharts support Smith Charts?

For Highmaps, we should have a method to find which map area a point lays within. Useful for building heatmaps.

When plotting a plodBand it doesn't plot the top border, if it's required to not plot the top border for some use cases, there should be an option to plot or not the top border.

Can we have any highchart functionality/feature that dashboard can automatically adjust width(HScroll bar) & height(VScroll bar) ?

Like chart should be overflow = auto (as per data)

Currently the navigator is positioned at number 2 point in the axis array if new axis are dynamically added otherwise it is the last element. This makes indexing int the axis array unnecessarily complicated and confusing. I want that the navigator array either be taken out of the xAxis array and have its own array or at least have a consistent position

When a border is added to bar/column charts, the border goes X pixels around the bar. This causes the bar to overlap over the axis lines and possibly other bars. See this JSFiddle example:
http://jsfiddle.net/aaewong/6kmu11md/5/

It would be nice if it could look more like this instead:
http://jsfiddle.net/izothep/0ubmw73z/7/

This would allow SVG paths to be shorter in many cases, which would reduce data size, and make the page load faster.

For example, SVG path for a rectangle could be
"M400 400h32v28h-32Z"
instead of
"M400 400L432 400 432 428 400 428Z"
See http://forum.highcharts.com/highmaps-usage-f14/use-of-relative-commands-in-svg-paths-for-map-t31720/

If a data point is between X and Y integer, give it "class='low-range'" if a data point is between A and B interger, give it "class='custom-class'", etc.

Plotlines are excellent to point out interesting Things in the chart. With large datasets it can be a good thing to be able to have an additional label for the exact value of that plotline

Reading a pie chart is like reading a clock. It's most effective to place the largest segment at 12 o'clock (as it does now). The best way to order the rest of the segments is to place the second biggest slice at 12 o'clock on the left; the rest would follow counterclockwise.