Belchertown charts - reversing data on y-axis

[Weatherlists]

Highcharts has an option to reverse the data on the y-axis:

yAxis: {
reversed: true
},

Here is a JSfiddle example:
https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/highcharts/yaxis/reversed/

Looked though the BT charting wiki but I can't see how to implement
this in a BT chart.

[olif onza]

This is not implemented yet.