Easy Chart pens draw order

Is there any way to control the pin draw order on the Easy Chart? I need to have control over the order for calculated area pens.
I have 4 area pens that need to show up in this order: Lo-Lo front most, Lo behind, Hi behind, and Hi-Hi back most. I can get the Hi-Hi and Hi to work somehow but not the other pens?

I’ve changed the order of the calculated pen’s data set in notepad - no change.
Changing the pen order does not work ether.