Make the pointer part of the visuals of the renderer.
I can't do that:
The steps are in a vertical list like
Step 1 <
When we move from Step 1 to Step 2, the pointer has to slide down.
When the button is clicked, if you use getElementAt, don't you get the
renderer? Then localToGlobal should work.
Yes, that's it.
I just added into my "go to next step" event handler a stepsDataGroup.getElementAt(stepIndex) and that gave me the y position.