[FEATURE] Stacked up axes

[SheepRock]

Expected Behavior

If multiple axes are used, there should be an option to pille them up

Current Behavior

Currently, when you create a multiple axes chart, there is only the option to put them side-by-side

Possible Solution

OxyPlot (C#) have this feature, where you can set the offset of an axis

Context

I need to compare some data that may have different scales, but I don't want them to stay one on top of another. Some data are binary, value is 0 or 1, like the red and blue charts on the image above, and two graphs may overlap each other, making it harder to visualize.

[cdbelyeu]

I'm interested in this as well, but on a bar chart.
In my use case, I want to create a bar chart with server response times. Something like this:

Where slow response times (blue) are scaled up significantly over fast response times (green).
However, a stacked bar chart with two y axes (with different scales) means that the contents of the first axis are painted over the second,

A possible solution for my use case would be for dataset.stack option for stacked bar charts to work across multiple axes. In that case, I could
data: { datasets: [{ ... yAxisID: 'y-axis-one', stack: '1' },{ ... yAxisID: 'y-axis-two', stack: '1' }] };

And there would be no data overlap.

[kurkle]

Where slow response times (blue) are scaled up significantly over fast response times (green).

Why don't you do the scaling to data and use same axis for both?

[cdbelyeu]

That's probably what I'll do for now, but it feels like kind of a hack to me.
It'll also mean having to create a custom tooltip to scale the values back down, and I won't be able to have a second scale on the right for the blue dataset.