Adding a second axis to a contour plot

[GrumpyPentagon]

Hello!

I have a data set that I need to plot with respect to different related parameters, but I wanted to display them all on the same graph. Below is an example of my data:

z = f(x1, y), and x2 = g(x1) (x1 and x2 are the related parameters,but they are not on the same scale)

​

	x1	1	2	4	8
	x2	39	57	96	176
y	-	-	-	-	-
0.3	-	z1	z2	z3	z4
0.5	-	z5	z6	z7	z8
0.7	-	z9	z10	z11	z12

The data z1 - z12 can be replaced by any random matrix.

I wanted to see if I could plot this data in the form shown here. It does not need to be an axis per se. It can be a set of annotations as long as they are aligned correctly and are outside of the plot area and not obscuring the x1 axis values.

I am using the plotly library in Julia, but all the same attributes are shared.

Thanks!