When it comes to JMP, there is almost always a way to do what you want. In this case, the only way I know to do what you are asking, is to add a customization to the graph using JSL.
The JSL I developed is quite hardcoded. I did that to keep the code simple and to just let you know the approach that can be used to develop a more generic solution. If you are not familiar with JSL, you will need to do some reading of the Scripting guide.
I have attached your data table, with a new Script added to it