cursor position on secondary axis

[rossu]

I have two plots on one XY graph, each with its own Y scale. I have a single cursor and I would like to retrieve the Y position on both axes when I move the cursor. Getting the position in terms of the first axis is straightforward, but I can't seem to find where you tell it to use the second axis.

[DHerron]

I don't know if you can associate it with a different scale if it's not a free cursor, but here's a way you can calculate it based off of the secondary scale.