allow axes to be flipped with parallel coordinates

Hi,
we are moving from D3.js parallel coordinates (http://syntagmatic.github.io/parallel-coordinates/) to plotly.js and found that most of our needs are catered already. But the very basic option to flip an axis (see minimal example via link above, doubleclick on axis label) does not seem to be present in the plotly.js parallel coordinate chart. It is very useful to get a 'nicer' more consistent view of the data when there are complementary data in neighbouring axes. Could you consider adopting the axis flipping option in the parallel coordinates chart of plotly.js?

从 plotly.js 平行坐标图开始，将其轴交互与链接的 D3.js 最小示例进行比较，包括双击轴标签。完成的标准是用户可以翻转一个轴，并获得所要求的、更一致的数据视图。