I am trying to align the Y axes with respect to the value 0, example: link
I have temporarily solved it by putting a padding, but it is extremely sloppy and when re-dimensioning the graph or changing the data it is misplaced (unless the padding is re-calculated dynamically but not on how to calculate it, I I've put it to my eye)
I do NOT have the solution to put the same range in the 2 axes, since the grace of having 2 axes is to put different ranges ..
Official documentation: link
on that same page there are examples and the source (top menu).