Graph Builder is fantastic, it's one of the killer features of JMP.
Does it have a ruler tool buried somewhere? A way to measure the distance between two points?
For all the things GB does, I'd be surprised if it didn't...
No, I don't think Graph Builder has that capability. In JMP you have the crosshair tool, which you could use with some offline calculation to measure the "distance" on a graph.
You can add feature requests on the JMP Wish List.
Already added it. Thx!